diff --git a/crates/ui-egui/locales/de-formats.json b/crates/ui-egui/locales/de-formats.json
index fd5e19861..a259b6936 100644
--- a/crates/ui-egui/locales/de-formats.json
+++ b/crates/ui-egui/locales/de-formats.json
@@ -215,5 +215,6 @@
   "There is a “{name}” at the top level already. Merge the two?": "Auf der obersten Ebene gibt es bereits „{name}“. Beide zusammenführen?",
   "Added “{keyword}” to {n} photo{}": "„{keyword}“ zu {n} Foto{} hinzugefügt",
   "On {have} of {of} selected photos": "Auf {have} von {of} ausgewählten Fotos",
-  "Remove “{name}”": "„{name}“ entfernen"
+  "Remove “{name}”": "„{name}“ entfernen",
+  "There is a keyword set “{name}” already": "Es gibt bereits einen Stichwortsatz „{name}“"
 }
diff --git a/crates/ui-egui/locales/de.json b/crates/ui-egui/locales/de.json
index 3d153d3ce..a82080c9e 100644
--- a/crates/ui-egui/locales/de.json
+++ b/crates/ui-egui/locales/de.json
@@ -1919,5 +1919,7 @@
   "Edit Set…": "Satz bearbeiten…",
   "Edit Keyword Set": "Stichwortsatz bearbeiten",
   "Keywords (⌥1–⌥9)": "Stichwörter (⌥1–⌥9)",
-  "A keyword set needs a name": "Ein Stichwortsatz braucht einen Namen"
+  "A keyword set needs a name": "Ein Stichwortsatz braucht einen Namen",
+  "Save as a new set": "Als neuen Satz speichern",
+  "Recent Keywords is built in: choose another name": "„Letzte Stichwörter“ ist vorgegeben: Wählen Sie einen anderen Namen"
 }
diff --git a/crates/ui-egui/locales/es-formats.json b/crates/ui-egui/locales/es-formats.json
index dfd320993..04f321003 100644
--- a/crates/ui-egui/locales/es-formats.json
+++ b/crates/ui-egui/locales/es-formats.json
@@ -215,5 +215,6 @@
   "There is a “{name}” at the top level already. Merge the two?": "Ya hay “{name}” en el nivel superior. ¿Combinar las dos?",
   "Added “{keyword}” to {n} photo{}": "Se añadió “{keyword}” a {n} foto{}",
   "On {have} of {of} selected photos": "En {have} de {of} fotos seleccionadas",
-  "Remove “{name}”": "Quitar “{name}”"
+  "Remove “{name}”": "Quitar “{name}”",
+  "There is a keyword set “{name}” already": "Ya hay un conjunto de palabras clave “{name}”"
 }
diff --git a/crates/ui-egui/locales/es.json b/crates/ui-egui/locales/es.json
index e1781e252..7be7d02c2 100644
--- a/crates/ui-egui/locales/es.json
+++ b/crates/ui-egui/locales/es.json
@@ -1764,5 +1764,7 @@
   "Edit Set…": "Editar conjunto…",
   "Edit Keyword Set": "Editar conjunto de palabras clave",
   "Keywords (⌥1–⌥9)": "Palabras clave (⌥1–⌥9)",
-  "A keyword set needs a name": "Un conjunto de palabras clave necesita un nombre"
+  "A keyword set needs a name": "Un conjunto de palabras clave necesita un nombre",
+  "Save as a new set": "Guardar como conjunto nuevo",
+  "Recent Keywords is built in: choose another name": "“Palabras clave recientes” es fijo: elige otro nombre"
 }
diff --git a/crates/ui-egui/locales/ja-formats.json b/crates/ui-egui/locales/ja-formats.json
index cab18a74a..cadc6834f 100644
--- a/crates/ui-egui/locales/ja-formats.json
+++ b/crates/ui-egui/locales/ja-formats.json
@@ -215,5 +215,6 @@
   "There is a “{name}” at the top level already. Merge the two?": "最上位にはすでに「{name}」があります。統合しますか？",
   "Added “{keyword}” to {n} photo{}": "写真{n}枚に「{keyword}」を追加しました{:.0}",
   "On {have} of {of} selected photos": "選択した写真{of}枚のうち{have}枚",
-  "Remove “{name}”": "「{name}」を削除"
+  "Remove “{name}”": "「{name}」を削除",
+  "There is a keyword set “{name}” already": "キーワードセット「{name}」はすでにあります"
 }
diff --git a/crates/ui-egui/locales/ja.json b/crates/ui-egui/locales/ja.json
index ad1b17a3f..3c9a6cf5a 100644
--- a/crates/ui-egui/locales/ja.json
+++ b/crates/ui-egui/locales/ja.json
@@ -1764,5 +1764,7 @@
   "Edit Set…": "セットを編集…",
   "Edit Keyword Set": "キーワードセットを編集",
   "Keywords (⌥1–⌥9)": "キーワード (⌥1–⌥9)",
-  "A keyword set needs a name": "キーワードセットには名前が必要です"
+  "A keyword set needs a name": "キーワードセットには名前が必要です",
+  "Save as a new set": "新しいセットとして保存",
+  "Recent Keywords is built in: choose another name": "「最近使用したキーワード」は組み込みです。別の名前を選んでください"
 }
diff --git a/crates/ui-egui/locales/pt-br-formats.json b/crates/ui-egui/locales/pt-br-formats.json
index 5215af8b3..f0bbcb2c8 100644
--- a/crates/ui-egui/locales/pt-br-formats.json
+++ b/crates/ui-egui/locales/pt-br-formats.json
@@ -215,5 +215,6 @@
   "There is a “{name}” at the top level already. Merge the two?": "Já existe “{name}” no nível superior. Mesclar as duas?",
   "Added “{keyword}” to {n} photo{}": "“{keyword}” adicionada a {n} foto{}",
   "On {have} of {of} selected photos": "Em {have} de {of} fotos selecionadas",
-  "Remove “{name}”": "Remover “{name}”"
+  "Remove “{name}”": "Remover “{name}”",
+  "There is a keyword set “{name}” already": "Já existe um conjunto de palavras-chave “{name}”"
 }
diff --git a/crates/ui-egui/locales/pt-br.json b/crates/ui-egui/locales/pt-br.json
index 4e4f43847..e2c3f5827 100644
--- a/crates/ui-egui/locales/pt-br.json
+++ b/crates/ui-egui/locales/pt-br.json
@@ -1764,5 +1764,7 @@
   "Edit Set…": "Editar conjunto…",
   "Edit Keyword Set": "Editar conjunto de palavras-chave",
   "Keywords (⌥1–⌥9)": "Palavras-chave (⌥1–⌥9)",
-  "A keyword set needs a name": "Um conjunto de palavras-chave precisa de um nome"
+  "A keyword set needs a name": "Um conjunto de palavras-chave precisa de um nome",
+  "Save as a new set": "Salvar como novo conjunto",
+  "Recent Keywords is built in: choose another name": "“Palavras-chave recentes” é fixo: escolha outro nome"
 }
diff --git a/crates/ui-egui/locales/ru-formats.json b/crates/ui-egui/locales/ru-formats.json
index b59e94746..66f9cfd55 100644
--- a/crates/ui-egui/locales/ru-formats.json
+++ b/crates/ui-egui/locales/ru-formats.json
@@ -215,5 +215,6 @@
   "There is a “{name}” at the top level already. Merge the two?": "На верхнем уровне уже есть «{name}». Объединить их?",
   "Added “{keyword}” to {n} photo{}": "«{keyword}» добавлено к фото ({n}){:.0}",
   "On {have} of {of} selected photos": "На {have} из {of} выбранных фото",
-  "Remove “{name}”": "Убрать «{name}»"
+  "Remove “{name}”": "Убрать «{name}»",
+  "There is a keyword set “{name}” already": "Набор ключевых слов «{name}» уже есть"
 }
diff --git a/crates/ui-egui/locales/ru.json b/crates/ui-egui/locales/ru.json
index 49e7c8cea..40cae6c3b 100644
--- a/crates/ui-egui/locales/ru.json
+++ b/crates/ui-egui/locales/ru.json
@@ -1439,5 +1439,8 @@
   "Edit Keyword Set": "Изменить набор ключевых слов",
   "Keywords (⌥1–⌥9)": "Ключевые слова (⌥1–⌥9)",
   "A keyword set needs a name": "Набору ключевых слов нужно название",
-  "Set name": "Название набора"
+  "Set name": "Название набора",
+  "Save as a new set": "Сохранить как новый набор",
+  "Recent Keywords is built in: choose another name": "«Недавние ключевые слова» — встроенный набор: выберите другое название",
+  "Recent Keywords": "Недавние ключевые слова"
 }
diff --git a/crates/ui-egui/locales/zh-hans-formats.json b/crates/ui-egui/locales/zh-hans-formats.json
index 3d32f0968..b329eef6c 100644
--- a/crates/ui-egui/locales/zh-hans-formats.json
+++ b/crates/ui-egui/locales/zh-hans-formats.json
@@ -215,5 +215,6 @@
   "There is a “{name}” at the top level already. Merge the two?": "顶层已有“{name}”。要合并两者吗？",
   "Added “{keyword}” to {n} photo{}": "已将“{keyword}”添加到 {n} 张照片{:.0}",
   "On {have} of {of} selected photos": "所选 {of} 张照片中的 {have} 张",
-  "Remove “{name}”": "移除“{name}”"
+  "Remove “{name}”": "移除“{name}”",
+  "There is a keyword set “{name}” already": "已有关键字集“{name}”"
 }
diff --git a/crates/ui-egui/locales/zh-hans.json b/crates/ui-egui/locales/zh-hans.json
index 7b4e3c7fb..ba429c36c 100644
--- a/crates/ui-egui/locales/zh-hans.json
+++ b/crates/ui-egui/locales/zh-hans.json
@@ -1764,5 +1764,7 @@
   "Edit Set…": "编辑集…",
   "Edit Keyword Set": "编辑关键字集",
   "Keywords (⌥1–⌥9)": "关键字 (⌥1–⌥9)",
-  "A keyword set needs a name": "关键字集需要名称"
+  "A keyword set needs a name": "关键字集需要名称",
+  "Save as a new set": "另存为新关键字集",
+  "Recent Keywords is built in: choose another name": "“最近使用的关键字”为内置集：请另选名称"
 }
diff --git a/crates/ui-egui/locales/zh-hant-formats.json b/crates/ui-egui/locales/zh-hant-formats.json
index dfe74be2a..ba8462202 100644
--- a/crates/ui-egui/locales/zh-hant-formats.json
+++ b/crates/ui-egui/locales/zh-hant-formats.json
@@ -215,5 +215,6 @@
   "There is a “{name}” at the top level already. Merge the two?": "最上層已有「{name}」。要合併兩者嗎？",
   "Added “{keyword}” to {n} photo{}": "已將「{keyword}」加入 {n} 張照片{:.0}",
   "On {have} of {of} selected photos": "選取的 {of} 張照片中的 {have} 張",
-  "Remove “{name}”": "移除「{name}」"
+  "Remove “{name}”": "移除「{name}」",
+  "There is a keyword set “{name}” already": "已有關鍵字集「{name}」"
 }
diff --git a/crates/ui-egui/locales/zh-hant.json b/crates/ui-egui/locales/zh-hant.json
index 274c6cf99..e1011b324 100644
--- a/crates/ui-egui/locales/zh-hant.json
+++ b/crates/ui-egui/locales/zh-hant.json
@@ -1764,5 +1764,7 @@
   "Edit Set…": "編輯集…",
   "Edit Keyword Set": "編輯關鍵字集",
   "Keywords (⌥1–⌥9)": "關鍵字 (⌥1–⌥9)",
-  "A keyword set needs a name": "關鍵字集需要名稱"
+  "A keyword set needs a name": "關鍵字集需要名稱",
+  "Save as a new set": "另存為新關鍵字集",
+  "Recent Keywords is built in: choose another name": "「最近使用的關鍵字」為內建集：請另選名稱"
 }
diff --git a/crates/ui-egui/src/panels/dialogs.rs b/crates/ui-egui/src/panels/dialogs.rs
index b5f8096d8..08788cbba 100644
--- a/crates/ui-egui/src/panels/dialogs.rs
+++ b/crates/ui-egui/src/panels/dialogs.rs
@@ -773,7 +773,7 @@ pub fn show(app: &mut LightcraftApp, ctx: &egui::Context) {
                         crate::widgets::register(ui.ctx(), id, r.rect);
                     }
                 }
-                Dialog::KeywordSet { name, slots, .. } => {
+                Dialog::KeywordSet { replaces, name, slots, as_new } => {
                     ui.label(egui::RichText::new(crate::i18n::tr("Set name")).color(t.text_dim));
                     let r = crate::text_field::TextField::singleline("field:keywordSetName", name)
                         .hint(crate::i18n::tr("Set name"))
@@ -801,6 +801,11 @@ pub fn show(app: &mut LightcraftApp, ctx: &egui::Context) {
                             }
                         }
                     });
+                    if replaces.is_some() {
+                        ui.add_space(6.0);
+                        let r = ui.checkbox(as_new, crate::i18n::tr("Save as a new set"));
+                        crate::widgets::register(ui.ctx(), "check:keywordSetAsNew", r.rect);
+                    }
                     // Return in any field saves the set
                     if returned {
                         confirm = true;
@@ -1225,13 +1230,26 @@ pub fn confirm_dialog(app: &mut LightcraftApp, dlg: &Dialog) -> Result<serde_jso
             }
         }
         Dialog::DeleteKeyword { keyword, .. } => app.run("keyword.delete", json!({"keyword": keyword})),
-        Dialog::KeywordSet { replaces, name, slots } => {
-            if name.trim().is_empty() {
+        Dialog::KeywordSet { replaces, name, slots, as_new } => {
+            use lightcraft_catalog::keywords::same;
+            let name = name.trim();
+            if name.is_empty() {
                 return Err(crate::i18n::tr("A keyword set needs a name").to_string());
             }
-            let mut params = json!({"name": name.trim(), "keywords": slots});
-            if let Some(old) = replaces {
-                params["replace"] = json!(old);
+            if same(name, lightcraft_engine::cmd::keywords::RECENT) {
+                return Err(crate::i18n::tr("Recent Keywords is built in: choose another name").to_string());
+            }
+            // the set it renames: none when saving as new, or when it was deleted meanwhile (then it is
+            // saved anew rather than refused)
+            let sets = &app.session.keyword_sets;
+            let renames = replaces.as_deref().filter(|_| !as_new).filter(|old| sets.iter().any(|x| same(&x.name, old)));
+            if sets.iter().any(|x| same(&x.name, name) && !renames.is_some_and(|old| same(&x.name, old))) {
+                return Err(crate::i18n::tr_format!("There is a keyword set “{name}” already", name = name));
+            }
+            let mut params = json!({"name": name, "keywords": slots});
+            match renames {
+                Some(old) => params["replace"] = json!(old),
+                None => params["new"] = json!(true),
             }
             app.run("keyword.saveSet", params)
         }
diff --git a/crates/ui-egui/src/panels/keyword_list.rs b/crates/ui-egui/src/panels/keyword_list.rs
index 940f08ddd..e315d1bda 100644
--- a/crates/ui-egui/src/panels/keyword_list.rs
+++ b/crates/ui-egui/src/panels/keyword_list.rs
@@ -602,6 +602,9 @@ mod tests {
             "Edit Set…",
             "Edit Keyword Set",
             "A keyword set needs a name",
+            "Recent Keywords",
+            "Keywords (⌥1–⌥9)",
+            "Save as a new set",
         ];
         let dir = std::path::Path::new(env!("CARGO_MANIFEST_DIR")).join("locales");
         for code in ["de", "es", "pt-br", "ru", "ja", "zh-hans", "zh-hant"] {
diff --git a/crates/ui-egui/src/panels/right.rs b/crates/ui-egui/src/panels/right.rs
index eb26a7f04..01be66fe6 100644
--- a/crates/ui-egui/src/panels/right.rs
+++ b/crates/ui-egui/src/panels/right.rs
@@ -889,6 +889,7 @@ fn keyword_set(app: &mut LightcraftApp, ui: &mut egui::Ui) {
                         replaces: named.then(|| current.clone()),
                         name: if named { current.clone() } else { String::new() },
                         slots,
+                        as_new: false,
                     });
                 }
                 if ui.button(crate::i18n::tr("Save Current Keywords as Set…")).clicked() {
diff --git a/crates/ui-egui/src/state.rs b/crates/ui-egui/src/state.rs
index 86429f1e9..15bc6221f 100644
--- a/crates/ui-egui/src/state.rs
+++ b/crates/ui-egui/src/state.rs
@@ -603,6 +603,9 @@ pub enum Dialog {
         replaces: Option<String>,
         name: String,
         slots: Vec<String>,
+        /// Save as a new set, leaving the edited one (Lightroom Classic's Save as New Preset).
+        #[serde(default)]
+        as_new: bool,
     },
     /// Move a keyword inside `parent` (`None`: the top level) where one of its name is already:
     /// asks before merging the two.
diff --git a/crates/ui-egui/src/tests_keyword_set.rs b/crates/ui-egui/src/tests_keyword_set.rs
index f62bf65ea..4667f5367 100644
--- a/crates/ui-egui/src/tests_keyword_set.rs
+++ b/crates/ui-egui/src/tests_keyword_set.rs
@@ -49,7 +49,7 @@ fn editing_recent_keywords_saves_them_as_a_set() {
     let mut h = keywords_panel();
     let recent = sets(&mut h)["keywords"].clone();
     open_editor(&mut h);
-    let Some(crate::state::Dialog::KeywordSet { replaces, name, slots }) = h.app.ui.dialog.clone() else { panic!("{:?}", h.app.ui.dialog) };
+    let Some(crate::state::Dialog::KeywordSet { replaces, name, slots, .. }) = h.app.ui.dialog.clone() else { panic!("{:?}", h.app.ui.dialog) };
     assert_eq!((replaces, name.as_str()), (None, ""));
     assert_eq!(json!(slots.iter().filter(|k| !k.is_empty()).collect::<Vec<_>>()), recent, "the current nine");
     ask(&mut h, "ui.text", json!({"text": "Beach Weddings"}));
@@ -111,3 +111,52 @@ fn the_slots_are_alike() {
         assert!((r.width() - slots[0].width()).abs() < 1.0, "{r:?} vs {:?}", slots[0]);
     }
 }
+
+/// Naming Recent Keywords like a set that exists says so, in the user's words, and keeps the
+/// dialog (and that set) as they were.
+#[test]
+fn a_taken_name_says_so() {
+    let mut h = keywords_panel();
+    h.app.session.execute("keyword.saveSet", &json!({"name": "Travel", "keywords": ["harbour"]})).unwrap();
+    h.app.session.execute("keyword.useSet", &json!({"name": "Recent Keywords"})).unwrap();
+    h.settle(SETTLE);
+    open_editor(&mut h);
+    ask(&mut h, "ui.text", json!({"text": "travel"}));
+    ask(&mut h, "ui.clickWidget", json!({"id": "button:dialogOk"}));
+    assert!(matches!(h.app.ui.dialog, Some(crate::state::Dialog::KeywordSet { .. })), "still open");
+    let toast = h.app.ui.toast.clone().map(|t| t.0).unwrap_or_default();
+    assert!(toast.starts_with("There is a keyword set"), "{toast}");
+    let s = sets(&mut h);
+    let travel = s["sets"].as_array().unwrap().iter().find(|x| x["name"] == "Travel").cloned().unwrap();
+    assert_eq!(travel["keywords"], json!(["harbour"]), "left alone");
+}
+
+/// A set deleted while its dialog was open is saved again, as a new set, rather than refused.
+#[test]
+fn a_set_deleted_meanwhile_is_saved_anew() {
+    let mut h = keywords_panel();
+    h.app.session.execute("keyword.saveSet", &json!({"name": "Weddings", "keywords": ["ceremony"]})).unwrap();
+    h.settle(SETTLE);
+    open_editor(&mut h);
+    h.app.session.execute("keyword.deleteSet", &json!({"name": "Weddings"})).unwrap();
+    ask(&mut h, "ui.clickWidget", json!({"id": "button:dialogOk"}));
+    assert_eq!(h.app.ui.dialog, None);
+    assert_eq!(sets(&mut h)["current"], "Weddings");
+}
+
+/// Save as a new set (Lightroom Classic's Save as New Preset): the edited set stays, and the new
+/// one, under its own name, becomes current.
+#[test]
+fn save_as_a_new_set_keeps_the_original() {
+    let mut h = keywords_panel();
+    h.app.session.execute("keyword.saveSet", &json!({"name": "Weddings", "keywords": ["ceremony"]})).unwrap();
+    h.settle(SETTLE);
+    open_editor(&mut h);
+    ask(&mut h, "ui.text", json!({"text": "Ceremonies"}));
+    ask(&mut h, "ui.clickWidget", json!({"id": "check:keywordSetAsNew"}));
+    ask(&mut h, "ui.clickWidget", json!({"id": "button:dialogOk"}));
+    let s = sets(&mut h);
+    let names: Vec<&str> = s["sets"].as_array().unwrap().iter().map(|x| x["name"].as_str().unwrap()).collect();
+    assert_eq!(names, ["Recent Keywords", "Weddings", "Ceremonies"]);
+    assert_eq!(s["current"], "Ceremonies");
+}