Isolation mode: Lock, Unlock All, Hide and Show All work on the isolated art

Squashed from #4849 onto main.

docs/mcp.md

@@ -1380,7 +1380,8 @@ them again with the key object. When the call changes nothing, it records no und
 Other `object.setProps` calls leave the selection unchanged.
 
 `object.unlockAll` and `object.showAll` unlock or show every locked or hidden object in the document and select
-them → `{count}`. With `scope: "group"` they take only the objects inside the groups that hold the selected objects:
+them → `{count}`. In isolation mode they take only the objects inside the isolated object. With `scope: "group"` they
+take only the objects inside the groups that hold the selected objects:
 for each selected object, the group nearest above it, or the object itself when it is a group. The objects of a
 group inside another such group are counted once. With no selected object in a group, the call returns the error
 "nothing selected is in a group" and changes nothing. `scope: "document"` is the default, and any other value is
@@ -1397,16 +1398,15 @@ object that `select.all` takes and that is neither selected nor holds a selected
 group that holds a selected object it hides the group's other members one by one; a clip group, a compound path or
 another object that holds a selected object stays as it is with its members. The objects of a selected layer count as
 selected. While Lock Guides is on, the guide paths count as selected and stay as they are. The selection stays as it is, and `object.showAll` shows the objects again. With nothing to
-hide it records no undo step. In isolation mode the menu item is disabled, and the command returns the error "exit
-isolation mode first" and changes nothing.
+hide it records no undo step. In isolation mode it hides only unselected objects inside the isolated object.
 
 `object.lock.unselected` (Cmd+Alt+Shift+2; shortcut and command, with no Object › Lock menu item) locks unselected
 artwork in one undo step and returns `{count}`. In a partly selected group, clipping group, or compound path, it locks
 the unselected members and leaves the container and selected members unlocked. It includes unselected guides even
 while Lock Guides is on. Hidden art and art on locked layers stay individually unlocked; a selected layer's artwork
 counts as selected. In ordinary isolation mode it locks only unselected art inside the isolated object. The selection
-stays as it is. `object.unlockAll` unlocks and selects all locked artwork in the document, including art locked before
-this command. With nothing to lock it records no undo step.
+stays as it is. `object.unlockAll` unlocks and selects all locked artwork in the document, or inside the isolated
+object in isolation mode, including art locked before this command. With nothing to lock it records no undo step.
 
 These Select menu commands select only the objects that `select.all` selects and the objects inside them: every
 `select.same.*` and `select.object.*` command except `select.object.slices`, `select.nextAbove`, `select.nextBelow`
@@ -2334,11 +2334,14 @@ and `layerRows`, the rows highlighted in the panel.
   opens no rows for it and scrolls as with the option off. A change made with the panel's own rows, buttons or menu is
   not located, and a change made during a drag is located when the drag ends.
   A document opens with only its top-level layers open; the open rows are saved in the native file and reopen that way.
-- **Lock and Hide in isolation mode**: in isolation mode, Object › Lock's and Object › Hide's items (`object.lock`,
-  `object.lock.above`, `object.lock.otherLayers`, `object.hide`, `object.hide.above`, `object.hide.otherLayers`),
-  `object.unlockAll` and `object.showAll` are off, and a call returns the error "command `object.hide` is not
-  available right now: exit isolation mode first", with the command's own id. Pattern editing mode and opacity mask
-  editing do not count as isolation mode for these commands.
+- **Lock and Hide in isolation mode**: Object › Lock's and Object › Hide's items (`object.lock`, `object.lock.above`,
+  `object.lock.otherLayers`, `object.lock.unselected`, `object.hide`, `object.hide.above`, `object.hide.otherLayers`,
+  `object.hide.unselected`) are on while an object inside the isolated object is selected, and they change only objects
+  inside it. All Artwork Above locks or hides the selected objects as well as the objects above them that overlap them.
+  Other Layers changes nothing in an isolated group, layer or sublayer, returns a count of 0 and records no undo step.
+  `object.unlockAll` and `object.showAll` are on with nothing selected, and they unlock or show and select only the
+  objects inside the isolated object. Pattern editing mode and opacity mask editing do not count as isolation mode for
+  these commands.
 - **Search and filter** (control channel and the app's MCP): the Search All field keeps the rows whose names hold the
   text typed, and `ui.layersFilter {objects?, layers?}` sets the choices of the Filter button beside it. `objects` (By
   Object) takes `paths` (paths and compound paths), `shapes` (live rectangles, ellipses, polygons and lines), `text`,

docs/target-app-parity.md

@@ -986,9 +986,9 @@ Moved from the ROADMAP's "Shipped so far" on 2026-10-10. Update it when a featur
 - **Colour, type and file workflows:** Recolor Artwork (dialog with harmonies), Edit Colors, Find & Replace, Change Case, Smart Punctuation, Guides, Lock/Hide Above, Transform Each, Rasterize.
   The Libraries panel holds gradients and patterns: its + button adds the selection's fill or stroke gradient or pattern, a gradient or pattern swatch dragged from the Swatches panel is added, and a click paints the selection through the active Fill/Stroke proxy, a pattern bringing its definition and swatch into the document.
   Object › Lock › All Artwork Above and Object › Hide › All Artwork Above deselect the selected objects they lock or hide, the key object included.
-  Object › Hide › Unselected Artwork (Cmd/Ctrl+Alt+Shift+3, `object.hide.unselected`) hides, in one undo step, every object Select All takes that is not selected and holds no selected object; the members of a group that holds a selected object are hidden one by one, and Object › Show All shows them again. It is disabled in isolation mode. Public references: [Default keyboard shortcuts](https://web.archive.org/web/20260726060015/https://helpx.adobe.com/illustrator/using/default-keyboard-shortcuts.html), "Hide unselected artwork"; [How to lock, hide, and delete objects in Illustrator](https://web.archive.org/web/20220303070637/https://helpx.adobe.com/illustrator/using/locking-hiding-deleting-objects.html), which says the Show All and Hide menus are unavailable in isolation mode.
-  Cmd/Ctrl+Alt+Shift+2 (`object.lock.unselected`) locks unselected artwork in one undo step and has no Object › Lock menu item. It locks unselected members of partly selected groups, clipping groups and compound paths, and unselected guides while Lock Guides is on. In ordinary isolation mode it locks only unselected art inside the isolated object. Object › Unlock All unlocks all locked art in the document. The [public shortcut page](https://web.archive.org/web/20260726060015/https://helpx.adobe.com/illustrator/using/default-keyboard-shortcuts.html) calls the action "Lock all deselected artwork".
-  In isolation mode, the visible items of Object › Lock and Object › Hide, Unlock All and Show All are greyed out ([lock, hide, and delete objects](https://web.archive.org/web/20220303070637/https://helpx.adobe.com/illustrator/using/locking-hiding-deleting-objects.html)); the shortcut-only `object.lock.unselected` command remains enabled with a selection. The Contextual Task Bar's Lock button is greyed out too, the Properties panel's Quick Actions have no Lock, and the other Lock and Hide commands return an error. Pattern editing mode and opacity mask editing do not count as isolation mode for them.
+  Object › Hide › Unselected Artwork (Cmd/Ctrl+Alt+Shift+3, `object.hide.unselected`) hides, in one undo step, every object Select All takes that is not selected and holds no selected object; the members of a group that holds a selected object are hidden one by one, and Object › Show All shows them again. In isolation mode it hides only unselected objects inside the isolated object. Public reference: [Default keyboard shortcuts](https://web.archive.org/web/20260726060015/https://helpx.adobe.com/illustrator/using/default-keyboard-shortcuts.html), "Hide unselected artwork".
+  Cmd/Ctrl+Alt+Shift+2 (`object.lock.unselected`) locks unselected artwork in one undo step and has no Object › Lock menu item. It locks unselected members of partly selected groups, clipping groups and compound paths, and unselected guides while Lock Guides is on. In ordinary isolation mode it locks only unselected art inside the isolated object. Object › Unlock All unlocks all locked art in the document, or inside the isolated object in isolation mode. The [public shortcut page](https://web.archive.org/web/20260726060015/https://helpx.adobe.com/illustrator/using/default-keyboard-shortcuts.html) calls the action "Lock all deselected artwork".
+  In isolation mode, the items of Object › Lock and Object › Hide are on while an object inside the isolated object is selected, and they change only objects inside it: All Artwork Above locks or hides the selected objects and the objects above them that overlap them, and Other Layers changes nothing in an isolated group, layer or sublayer. Unlock All and Show All are on with nothing selected and unlock or show and select only the objects inside the isolated object. The Contextual Task Bar's Lock button and the Properties panel's Quick Actions Lock lock the selected object. Pattern editing mode and opacity mask editing do not count as isolation mode for them.
   Liquify (its brush Width, Height and Angle, Intensity, Detail, Simplify, Twirl Rate, Complexity, Horizontal and Vertical), Puppet Warp (its Expand and each pin's angle), Transform in Perspective (its depth), Nudge in Perspective (its direction) and Move Plane (its location or distance) refuse a value other than a number or null, such as "40", Draw in Perspective refuses a click point that is not two numbers, and Width Profile refuses a point that is not three numbers; each leaves the document and its undo history as they were.
   Object › Lock › All Artwork Above and Object › Hide › All Artwork Above go through each top-level layer once, checking each object that is not selected against the selected objects below it: with 100 tiles selected under 25,000 rectangles, Lock took 6.4 s and now takes under 0.1 s, and with all of 5,001 objects selected it took 8.8 s and now takes under 0.1 s.
   Object › Unlock All and Object › Show All clicked in the in-window menu bar with Shift+Alt (Shift+Option) held unlock or show only the objects inside the groups that hold the selected objects ([lock, hide, and delete objects](https://web.archive.org/web/20230623025912/https://helpx.adobe.com/illustrator/using/locking-hiding-deleting-objects.html)); `object.unlockAll` and `object.showAll` take `scope: "group"` for it.