Variables: a data set with no value for any bound variable shows a status message

Choosing a data set in the Variables panel, stepping through data sets
with the panel's arrows, and running `dataset.select`, `dataset.next`
and `dataset.prev` applied nothing and showed no message when no object
was bound to a variable that the data set has a value for. This
happens, for example, after Import Data Sets… defines new variables
without binding them.

The app now shows "nothing in data set A was applied: no object is
bound to a variable it has a value for" in the status bar, and the three
commands add it to the reply as `warning`. A data set with a value for
a bound variable gives no warning even when every object bound to it is
locked; `skipped` counts those objects. What applying a data set does
is unchanged.

Docs: docs/mcp.md, docs/target-app-parity.md.

crates/engine/src/cmd/variablecmds.rs

@@ -459,7 +459,7 @@ fn dataset_list(s: &mut Session, _p: &Value) -> Result<Value> {
 
 fn apply_dataset(s: &mut Session, name: &str) -> Result<Value> {
     const C: &str = "dataset.select";
-    let (applied, skipped, mut typed) = s.edit("Apply Data Set", |d, sel| {
+    let (applied, skipped, mut typed, bound) = s.edit("Apply Data Set", |d, sel| {
         let ds = d.variables.dataset(name).cloned().ok_or_else(|| bad(C, format!("no dataset named `{name}`")))?;
         // One object may be driven by several variables; walk them in definition order, so two
         // text variables on the same object land the later one's value and both are counted.
@@ -467,6 +467,8 @@ fn apply_dataset(s: &mut Session, name: &str) -> Result<Value> {
         for v in &d.variables.variables {
             pairs.extend(d.variables.objects_of(&v.name).into_iter().map(|id| (id, v.name.clone())));
         }
+        // Whether an object is bound to a variable that this row has a value for (the reply's `warning`).
+        let bound = pairs.iter().any(|(_, var)| ds.values.contains_key(var));
         let mut applied = 0usize;
         let mut skipped = 0usize;
         // Collects the type objects whose text the row rewrote, for the reply's `overflow`.
@@ -514,12 +516,18 @@ fn apply_dataset(s: &mut Session, name: &str) -> Result<Value> {
         d.variables.active_dataset = Some(name.to_string());
         // Every selected object left hidden or locked, such as one the row hid, is deselected.
         sel.deselect_uneditable(d);
-        Ok((applied, skipped, typed))
+        Ok((applied, skipped, typed, bound))
     })?;
     // Two text variables on one object rewrite it twice; it is named once.
     typed.sort_unstable();
     typed.dedup();
-    Ok(super::typecmd::with_overflow(s, &typed, json!({"name": name, "applied": applied, "skipped": skipped})))
+    let mut out = super::typecmd::with_overflow(s, &typed, json!({"name": name, "applied": applied, "skipped": skipped}));
+    // A row with no value for any bound variable applies nothing. The reply then carries a
+    // `warning`, which the app shows in its status bar.
+    if !bound {
+        out["warning"] = json!(format!("nothing in data set {name} was applied: no object is bound to a variable it has a value for"));
+    }
+    Ok(out)
 }
 
 fn dataset_select(s: &mut Session, p: &Value) -> Result<Value> {
@@ -1037,7 +1045,7 @@ pub fn specs() -> Vec<CommandSpec> {
             "Select Data Set",
             ["Window", "Variables"],
             None,
-            "{name} apply a dataset in one undo step, deselecting every selected object left hidden or locked (the key object too) → {applied, skipped, overflow?: [id…] (area type and type on a path whose text it rewrote and that no longer fits; left out when all fits)}",
+            "{name} apply a dataset in one undo step, deselecting every selected object left hidden or locked (the key object too) → {applied, skipped, overflow?: [id…] (area type and type on a path whose text it rewrote and that no longer fits; left out when all fits), warning? (when no object is bound to a variable that the dataset has a value for, so nothing was applied)}",
             has_doc,
             dataset_select
         ),

crates/engine/src/tests_variables.rs

@@ -131,6 +131,44 @@ fn mismatched_and_missing_bindings_are_skipped_and_counted() {
     assert_eq!(plain(&s, t), "y");
 }
 
+/// A row with no value for any bound variable, such as one from Import Data Sets… before anything
+/// is bound, applies nothing, and the reply's `warning` names it. A bound variable with a value in
+/// the row gives no warning, even when its object is locked and skipped.
+#[test]
+fn a_row_with_no_value_for_a_bound_variable_warns_that_nothing_was_applied() {
+    let mut s = session();
+    let t = text(&mut s, "x");
+    s.execute("dataset.import", &json!({"csv": "name,Name,Title\nA,Ann,Boss\nB,Bob,Chief\n"})).unwrap();
+    let warning = |row: &str| format!("nothing in data set {row} was applied: no object is bound to a variable it has a value for");
+    let v = s.execute("dataset.select", &json!({"name": "A"})).unwrap();
+    assert_eq!((v["applied"].as_u64(), v["skipped"].as_u64(), &v["warning"]), (Some(0), Some(0), &json!(warning("A"))), "{v}");
+    let v = s.execute("dataset.next", &json!({})).unwrap();
+    assert_eq!(v["warning"], json!(warning("B")), "{v}");
+    let v = s.execute("dataset.prev", &json!({})).unwrap();
+    assert_eq!(v["warning"], json!(warning("A")), "{v}");
+    assert_eq!(plain(&s, t), "x");
+
+    // A bound variable that the row has no value for still applies nothing.
+    s.execute("variable.define", &json!({"name": "Other", "kind": "text"})).unwrap();
+    s.execute("variable.bind", &json!({"variable": "Other", "ids": [t.0]})).unwrap();
+    let v = s.execute("dataset.select", &json!({"name": "B"})).unwrap();
+    assert_eq!((v["applied"].as_u64(), v["skipped"].as_u64(), &v["warning"]), (Some(0), Some(1), &json!(warning("B"))), "{v}");
+
+    // Bound to a variable with a value, the row applies it and gives no warning.
+    s.execute("variable.bind", &json!({"variable": "Title", "ids": [t.0]})).unwrap();
+    let v = s.execute("dataset.select", &json!({"name": "A"})).unwrap();
+    assert_eq!(v["applied"].as_u64(), Some(1), "{v}");
+    assert!(v.get("warning").is_none(), "{v}");
+    assert_eq!(plain(&s, t), "Boss");
+
+    // Locked art is skipped, and its binding still counts as bound.
+    s.execute("select.set", &json!({"ids": [t.0]})).unwrap();
+    s.execute("object.lock", &json!({})).unwrap();
+    let v = s.execute("dataset.select", &json!({"name": "B"})).unwrap();
+    assert_eq!(v["applied"].as_u64(), Some(0), "{v}");
+    assert!(v.get("warning").is_none(), "{v}");
+}
+
 #[test]
 fn deleting_a_variable_cleans_bindings_values_and_leaves_datasets_alone() {
     let mut s = session();

crates/ui-egui/src/i18n/cs.tsv

@@ -5154,6 +5154,7 @@ mark-style	Japanese	Japonské
 @msg	choose a destination folder	vyberte cílovou složku
 @msg	choose a source folder	vyberte zdrojovou složku
 @msg	open a document with data sets	otevřete dokument se sadami dat
+@msg	nothing in data set {name} was applied: no object is bound to a variable it has a value for	ze sady dat {name} se nic nepoužilo: žádný objekt není svázán s proměnnou, pro kterou má hodnotu
 @msg	the action has no steps	akce nemá žádné kroky
 
 # User Interface › Accent Color

crates/ui-egui/src/i18n/de.tsv

@@ -4732,6 +4732,7 @@ effect	Soft	Weich
 @msg	choose a destination folder	wählen Sie einen Zielordner
 @msg	choose a source folder	wählen Sie einen Quellordner
 @msg	open a document with data sets	öffnen Sie ein Dokument mit Datensätzen
+@msg	nothing in data set {name} was applied: no object is bound to a variable it has a value for	aus dem Datensatz {name} wurde nichts angewendet: kein Objekt ist an eine Variable gebunden, für die er einen Wert hat
 @msg	the action has no steps	die Aktion hat keine Schritte
 
 # User Interface › Accent Color

crates/ui-egui/src/i18n/el.tsv

@@ -5093,6 +5093,7 @@ effect	Points	Σημεία
 @msg	choose a destination folder	επιλέξτε φάκελο προορισμού
 @msg	choose a source folder	επιλέξτε φάκελο προέλευσης
 @msg	open a document with data sets	ανοίξτε ένα έγγραφο με σύνολα δεδομένων
+@msg	nothing in data set {name} was applied: no object is bound to a variable it has a value for	δεν εφαρμόστηκε τίποτα από το σύνολο δεδομένων {name}: κανένα αντικείμενο δεν είναι συνδεδεμένο με μεταβλητή για την οποία έχει τιμή
 @msg	select an Intertwine group	επιλέξτε μια ομάδα διαπλοκής
 @msg	span must be "object" or "selection", got {v}	το span πρέπει να είναι "object" ή "selection", δόθηκε {v}
 @msg	span: "selection" places a `gradient`, not a swatch	span: το "selection" τοποθετεί ένα `gradient`, όχι δείγμα χρώματος

crates/ui-egui/src/i18n/es.tsv

@@ -5096,6 +5096,7 @@ mark-style	Japanese	Japonesas
 @msg	choose a destination folder	elija una carpeta de destino
 @msg	choose a source folder	elija una carpeta de origen
 @msg	open a document with data sets	abra un documento con conjuntos de datos
+@msg	nothing in data set {name} was applied: no object is bound to a variable it has a value for	no se aplicó nada del conjunto de datos {name}: ningún objeto está vinculado a una variable para la que tenga un valor
 @msg	the action has no steps	la acción no tiene pasos
 
 # User Interface › Accent Color

crates/ui-egui/src/i18n/fi.tsv

@@ -5105,6 +5105,7 @@ mark-style	Japanese	Japanilainen
 @msg	choose a destination folder	valitse kohdekansio
 @msg	choose a source folder	valitse lähdekansio
 @msg	open a document with data sets	avaa asiakirja, jossa on tietojoukkoja
+@msg	nothing in data set {name} was applied: no object is bound to a variable it has a value for	tietojoukosta {name} ei käytetty mitään: mitään objektia ei ole sidottu muuttujaan, jolle siinä on arvo
 @msg	select an Intertwine group	valitse lomitusryhmä
 @msg	span must be "object" or "selection", got {v}	span-arvon on oltava "object" tai "selection", saatiin {v}
 @msg	span: "selection" places a `gradient`, not a swatch	span: "selection" sijoittaa `gradient`-liukuvärin, ei värimallia

crates/ui-egui/src/i18n/fr.tsv

@@ -5153,6 +5153,7 @@ theme	Appearance	Apparence
 @msg	choose a destination folder	choisissez un dossier de destination
 @msg	choose a source folder	choisissez un dossier source
 @msg	open a document with data sets	ouvrez un document avec des jeux de données
+@msg	nothing in data set {name} was applied: no object is bound to a variable it has a value for	rien du jeu de données {name} n’a été appliqué, car aucun objet n’est lié à une variable pour laquelle il a une valeur
 @msg	the action has no steps	l'action n'a aucune étape
 
 # User Interface › Accent Color

crates/ui-egui/src/i18n/hu.tsv

@@ -5140,6 +5140,7 @@ imageTrace	Outline	Körvonal
 @msg	choose a destination folder	válasszon célmappát
 @msg	choose a source folder	válasszon forrásmappát
 @msg	open a document with data sets	nyisson meg egy adatkészleteket tartalmazó dokumentumot
+@msg	nothing in data set {name} was applied: no object is bound to a variable it has a value for	ebből az adatkészletből semmi sem lett alkalmazva: {name}; egyetlen objektum sincs olyan változóhoz kötve, amelynek értéke van benne
 @msg	the action has no steps	a műveletnek nincsenek lépései
 
 # User Interface › Accent Color

crates/ui-egui/src/i18n/it.tsv

@@ -4766,6 +4766,7 @@ lighting	Light	Luce
 @msg	choose a destination folder	scegli una cartella di destinazione
 @msg	choose a source folder	scegli una cartella di origine
 @msg	open a document with data sets	apri un documento con set di dati
+@msg	nothing in data set {name} was applied: no object is bound to a variable it has a value for	non è stato applicato nulla del set di dati {name}: nessun oggetto è associato a una variabile per cui ha un valore
 @msg	the action has no steps	l'azione non ha passaggi
 
 # User Interface › Accent Color

crates/ui-egui/src/i18n/ja.tsv

@@ -4806,6 +4806,7 @@ lighting	Light	ライト
 @msg	choose a destination folder	出力先フォルダーを選択してください
 @msg	choose a source folder	ソースフォルダーを選択してください
 @msg	open a document with data sets	データセットのあるドキュメントを開いてください
+@msg	nothing in data set {name} was applied: no object is bound to a variable it has a value for	データセット {name} から何も適用されませんでした: 値のある変数にバインドされたオブジェクトがありません
 @msg	the action has no steps	アクションにステップがありません
 
 # User Interface › Accent Color

crates/ui-egui/src/i18n/ka.tsv

@@ -4848,6 +4848,7 @@ imageTrace	Outline	კონტური
 @msg	choose a destination folder	აირჩიეთ დანიშნულების საქაღალდე
 @msg	choose a source folder	აირჩიეთ წყარო საქაღალდე
 @msg	open a document with data sets	გახსენით დოკუმენტი მონაცემთა ნაკრებებით
+@msg	nothing in data set {name} was applied: no object is bound to a variable it has a value for	მონაცემთა ნაკრები {name}: არაფერი გამოყენებულა; არცერთი ობიექტი არ არის მიბმული ცვლადზე, რომელსაც მასში მნიშვნელობა აქვს
 @msg	the action has no steps	მოქმედებას ნაბიჯები არ აქვს
 	Convert to Straight Lines	სწორ ხაზებად გარდაქმნა
 	Corner Point Angle Threshold:	კუთხოვანი წერტილის კუთხის ზღვარი:

crates/ui-egui/src/i18n/ko.tsv

@@ -4729,6 +4729,7 @@ lighting	Light	광원
 @msg	choose a destination folder	대상 폴더를 선택하세요
 @msg	choose a source folder	소스 폴더를 선택하세요
 @msg	open a document with data sets	데이터 세트가 있는 문서를 여세요
+@msg	nothing in data set {name} was applied: no object is bound to a variable it has a value for	데이터 세트 {name}에서 적용된 항목이 없습니다: 값이 있는 변수에 연결된 개체가 없습니다
 @msg	the action has no steps	액션에 단계가 없습니다
 
 # User Interface › Accent Color

crates/ui-egui/src/i18n/pl.tsv

@@ -5005,6 +5005,7 @@ mark-style	Japanese	Japońskie
 @msg	choose a destination folder	wybierz folder docelowy
 @msg	choose a source folder	wybierz folder źródłowy
 @msg	open a document with data sets	otwórz dokument z zestawami danych
+@msg	nothing in data set {name} was applied: no object is bound to a variable it has a value for	z zestawu danych {name} nic nie zastosowano: żaden obiekt nie jest powiązany ze zmienną, dla której ma on wartość
 @msg	the action has no steps	operacja nie ma kroków
 
 # User Interface › Accent Color

crates/ui-egui/src/i18n/pt-br.tsv

@@ -5032,6 +5032,7 @@ mark-style	Japanese	Japonesas
 @msg	choose a destination folder	escolha uma pasta de destino
 @msg	choose a source folder	escolha uma pasta de origem
 @msg	open a document with data sets	abra um documento com conjuntos de dados
+@msg	nothing in data set {name} was applied: no object is bound to a variable it has a value for	nada do conjunto de dados {name} foi aplicado: nenhum objeto está vinculado a uma variável para a qual ele tem um valor
 @msg	the action has no steps	a ação não tem etapas
 @msg	Angles require two straight segments	Ângulos exigem dois segmentos retos
 @msg	Choose a circle or a perfect arc	Escolha um círculo ou um arco perfeito

crates/ui-egui/src/i18n/ru.tsv

@@ -4762,6 +4762,7 @@ lighting	Light	Свет
 @msg	choose a destination folder	выберите папку назначения
 @msg	choose a source folder	выберите исходную папку
 @msg	open a document with data sets	откройте документ с наборами данных
+@msg	nothing in data set {name} was applied: no object is bound to a variable it has a value for	из набора данных {name} ничего не применено: ни один объект не привязан к переменной, для которой в нём есть значение
 @msg	the action has no steps	в действии нет шагов
 
 # User Interface › Accent Color

crates/ui-egui/src/i18n/sv.tsv

@@ -5097,6 +5097,7 @@ theme	Appearance	Utseende
 @msg	choose a destination folder	välj en målmapp
 @msg	choose a source folder	välj en källmapp
 @msg	open a document with data sets	öppna ett dokument med datauppsättningar
+@msg	nothing in data set {name} was applied: no object is bound to a variable it has a value for	inget i datauppsättningen {name} användes: inget objekt är bundet till en variabel som den har ett värde för
 @msg	select an Intertwine group	markera en sammanflätningsgrupp
 @msg	span must be "object" or "selection", got {v}	span måste vara "object" eller "selection", fick {v}
 @msg	span: "selection" places a `gradient`, not a swatch	span: "selection" placerar en `gradient`, inte en färgruta

crates/ui-egui/src/i18n/tests.rs

@@ -1648,6 +1648,23 @@ fn align_reflect_and_shear_param_errors_are_translated() {
     }
 }
 
+/// The warning that a data set with no value for a bound variable gives, which the status bar
+/// shows and the scan above doesn't read, is translated in each language of [`COMPLETE_MESSAGES`],
+/// with the data set's name kept.
+#[test]
+fn the_data_set_applied_nothing_warning_is_translated() {
+    use serde_json::json;
+    let mut s = vectorcraft_engine::Session::new();
+    s.execute("file.new", &json!({})).unwrap();
+    s.execute("dataset.import", &json!({"csv": "name,Name\nRow 7,Ann\n"})).unwrap();
+    let v = s.execute("dataset.select", &json!({"name": "Row 7"})).unwrap();
+    let warning = v["warning"].as_str().unwrap();
+    for code in COMPLETE_MESSAGES {
+        let shown = message(Lang::from_code(code).unwrap(), warning);
+        assert!(shown.contains("Row 7") && !shown.contains("was applied"), "{code}: {shown}");
+    }
+}
+
 /// The parameter errors of the blend spine commands (Move Spine Point, Reshape Spine Segment, Add
 /// Spine Point and Delete Spine Point, which Direct Selection, the Pen and the Anchor Point tool
 /// send), whose text the scan above doesn't read, are translated whole in each language of

crates/ui-egui/src/i18n/uk.tsv

@@ -4746,6 +4746,7 @@ lighting	Light	Світло
 @msg	choose a destination folder	виберіть папку призначення
 @msg	choose a source folder	виберіть вихідну папку
 @msg	open a document with data sets	відкрийте документ із наборами даних
+@msg	nothing in data set {name} was applied: no object is bound to a variable it has a value for	з набору даних {name} нічого не застосовано: жоден об’єкт не прив’язано до змінної, для якої в ньому є значення
 @msg	the action has no steps	у дії немає кроків
 
 # User Interface › Accent Color

crates/ui-egui/src/i18n/vi.tsv

@@ -4746,6 +4746,7 @@ theme	Appearance	Giao diện
 @msg	choose a destination folder	hãy chọn thư mục đích
 @msg	choose a source folder	hãy chọn thư mục nguồn
 @msg	open a document with data sets	hãy mở một tài liệu có tập dữ liệu
+@msg	nothing in data set {name} was applied: no object is bound to a variable it has a value for	không có gì trong tập dữ liệu {name} được áp dụng: không có đối tượng nào được gắn với biến số mà tập dữ liệu có giá trị
 @msg	the action has no steps	hành động không có bước nào
 
 # User Interface › Accent Color

crates/ui-egui/src/i18n/zh-hans.tsv

@@ -4248,6 +4248,7 @@ imageTrace	Outline	轮廓
 @msg	choose a destination folder	请选择目标文件夹
 @msg	choose a source folder	请选择源文件夹
 @msg	open a document with data sets	请打开包含数据集的文档
+@msg	nothing in data set {name} was applied: no object is bound to a variable it has a value for	数据集 {name} 未应用任何内容：没有对象绑定到该数据集中有值的变量
 @msg	the action has no steps	该动作没有步骤
 # Import Shortcut Set (Keyboard Shortcuts › Import…, File › Open of a .kys file) and its commands.
 	Import Shortcut Set	导入快捷键组

crates/ui-egui/src/i18n/zh-hant.tsv

@@ -2256,6 +2256,7 @@ file-filter	Templates	範本
 @msg	choose a destination folder	請選擇目的地資料夾
 @msg	choose a source folder	請選擇來源資料夾
 @msg	open a document with data sets	請開啟含有資料集的文件
+@msg	nothing in data set {name} was applied: no object is bound to a variable it has a value for	資料集 {name} 未套用任何內容：沒有物件綁定到該資料集中有值的變數
 @msg	the action has no steps	動作沒有步驟
 @msg	cancelled; nothing was changed	已取消；未做任何變更
 @msg	Save writes {_1}, not {_2}: use file.saveAsTemplate to write it	「儲存」會寫入 {_1}，而非 {_2}：若要寫入該格式，請使用 file.saveAsTemplate

crates/ui-egui/src/panels/variables.rs

@@ -390,6 +390,29 @@ mod tests {
         assert_eq!(app.run("dataset.list", json!({})).unwrap()["datasets"][0]["matches"], json!(true));
     }
 
+    /// Choosing a data set, or stepping to one with the arrows, shows a status message when no
+    /// object is bound to a variable it has a value for, for example after Import Data Sets…
+    /// defines new variables. With such an object bound, it shows none.
+    #[test]
+    fn a_data_set_with_nothing_bound_shows_a_status_message() {
+        let mut app = VectorcraftApp::new(vectorcraft_engine::Session::new(), Default::default());
+        app.session.execute("file.new", &json!({"width": 300, "height": 200})).unwrap();
+        let t = app.session.execute("text.create", &json!({"x": 10, "y": 40, "text": "x"})).unwrap()["id"].as_u64().unwrap();
+        app.run("dataset.import", json!({"csv": "name,Name\nA,Ann\nB,Bob\n"})).unwrap();
+        let message = |row: &str| format!("nothing in data set {row} was applied: no object is bound to a variable it has a value for");
+        app.run("dataset.select", json!({"name": "A"})).unwrap();
+        assert_eq!(app.ui.status, message("A"));
+        app.run("dataset.next", json!({})).unwrap();
+        assert_eq!(app.ui.status, message("B"));
+        app.run("dataset.prev", json!({})).unwrap();
+        assert_eq!(app.ui.status, message("A"));
+
+        app.ui.status.clear();
+        app.run("variable.bind", json!({"variable": "Name", "ids": [t]})).unwrap();
+        app.run("dataset.select", json!({"name": "B"})).unwrap();
+        assert_eq!(app.ui.status, "");
+    }
+
     #[test]
     fn the_panel_menu_lists_the_row_commands() {
         let mut app = app_with_data();

docs/mcp.md

@@ -1254,6 +1254,12 @@ defined. Of two variables of the same kind on one object, the one defined last w
 {"name":"run_command","arguments":{"command":"command.batch","params":{"label":"Offset","commands":[{"command":"object.move","params":{"dx":10,"dy":10,"copy":true}}]}}}
 ```
 
+When no object is bound to a variable that the data set has a value for, for example after `dataset.import` defines
+new variables without binding them, `dataset.select`, `dataset.next` and `dataset.prev` apply nothing and add
+`warning`, which the app's status bar shows: "nothing in data set A was applied: no object is bound to a variable it
+has a value for". A data set with a value for a bound variable gives no warning even when every object bound to it is
+locked; `skipped` counts those objects.
+
 `dataset.update {all?}` writes what the bound objects hold now into the active data set, for each variable that the
 data set holds. A variable whose objects report no value, because they are locked, inside a locked layer or group,
 or deleted, keeps the data set's value. With `all: true` it also adds every other variable that the

docs/target-app-parity.md

@@ -430,6 +430,7 @@ Moved from the ROADMAP's "Shipped so far" on 2026-10-10. Update it when a featur
   - Variables: Update Data Set writes what the art holds into the active data set for the variables that data set holds, and keeps the data set's value for a variable whose objects are locked or inside a locked layer or group; `dataset.update {all: true}` also adds the other variables that the art reports a value for.
   - Variables: `dataset.select`, `dataset.next` and `dataset.prev` rewrite type and apply the other values on hidden objects and in hidden layers and groups, which stay hidden unless a visibility value shows them, so a layer shown later holds the selected data set's text; objects that are locked or in a locked layer or group are skipped.
   - Variables: `dataset.select`, `dataset.next` and `dataset.prev` name the area type and type on a path whose text they rewrote and that doesn't fit, in the reply's `overflow` key, as `text.setText` does.
+  - Variables: when no object is bound to a variable that the data set has a value for, for example after Import Data Sets… defines new variables without binding them, choosing the data set in the Variables panel or stepping to it with the panel's arrows shows a status message, and `dataset.select`, `dataset.next` and `dataset.prev` add the message to the reply as `warning`.
   - Variables: Lock Variables (`variable.lock`, in the Variables panel's bottom bar and menu) stops variables from being defined, deleted or renamed until they are unlocked, while objects can still be bound and unbound and data sets still change and apply; the lock is saved with the document.
   - Batch…: Override Save and Override Export name each file with the extension of the format the step writes, however the step spells the format (`.svg` and `SVG` give `.svg`, `png8` gives `.png`), in `action.batch`.
   - Actions panel (record/playback, persisted), generic parameter dialogs for every "…" command.