Artboards: Alt-click on New Artboard opens Artboard Options for the new artboard

An Alt-click (Option-click on macOS) on the Artboards panel's New
Artboard used to add an artboard at once, as a plain click does. It now
opens Artboard Options for the new artboard, filled in with the name and
size that artboard.new {} would give it, and adds nothing yet. OK adds
the artboard with the fields where artboard.new {} would place it (20 pt
to the right of the last artboard) in one undo step, and makes it the
active artboard; Cancel adds no artboard. A plain click and a row
dropped on the button work as before.

The new UI command ui.newArtboard ("New Artboard Options…") opens the
dialog. It is listed after ui.newLayer, and its label has a row in each
catalog.

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

docs/mcp.md

@@ -3662,7 +3662,9 @@ same dialog, and its OK also draws a flare there. The Artboard tool's are the ac
 (dialog `artboardOptions`; the Artboard tool's active artboard while it is in use, else the window's), a graph tool's
 the selected graph's Graph Type (an error without one), a Symbolism tool's the Symbolism Tools Options (dialog
 `symbolismOptions`: `diameter` in points, `intensity` and `density` 1–10, one brush for the eight tools) and the
-Magic Wand tool's its panel.
+Magic Wand tool's its panel. `ui.newArtboard` (Alt-click on the Artboards panel's New Artboard) opens Artboard Options
+for a new artboard, with `new: true` and the name, position and size that `artboard.new {}` would give it. OK runs
+`artboard.new` with the fields and makes the new artboard the active one, and Cancel adds no artboard.
 
 ```json
 {"name":"run_command","arguments":{"command":"tool.setOption","params":{"tool":"flare","values":{"rays":24,"ringsOn":false}}}}

docs/target-app-parity.md

@@ -538,6 +538,7 @@ Moved from the ROADMAP's "Shipped so far" on 2026-10-10. Update it when a featur
   Align to Artboard uses the active artboard, the one the Artboards panel highlights (`object.align {artboard}`). A press with a selection tool inside an artboard makes that artboard active; with the Selection tool, a Shift-click on an empty spot inside an artboard makes it active and keeps the selection. One selected object is aligned to the active artboard too, whatever Align To says (a lone object is never the key object). When an action plays, its Align to Artboard, All on Active Artboard, Paste in Place, Paste in Front and Paste in Back steps that name no artboard use the artboard that is active then.
   Choosing the Artboard tool (Shift+O, its toolbar button, or Edit Artboards in Properties or Document Setup) starts it on the active artboard: the canvas outlines that artboard, and Delete, Cut, Copy, the Transform panel and Artboard Options act on it.
   In the Artboards panel, a click on the active artboard's options icon, or a double-click on another row's icon, opens Artboard Options for that row's artboard, and the panel menu's Artboard Options… opens it for the active artboard (part of #1876). Both used to choose the Artboard tool instead. Opened while another tool is in use, the dialog moves the art with a new X or Y when the Artboard tool's Move Artwork with Artboard option is on.
+  Alt-clicking New Artboard in the Artboards panel opens Artboard Options for the new artboard, and OK adds it and makes it the active artboard (`ui.newArtboard`; behavior reference: [Default keyboard shortcuts](https://helpx.adobe.com/illustrator/using/default-keyboard-shortcuts.html), Use panels). A plain click still adds the artboard at once.
   With Align to Artboard chosen, the Align panel's Distribute Objects and Distribute Spacing buttons use the active artboard (`object.distribute` and `object.distributeSpacing` with `to: "artboard"` and `artboard`). The first object's left or top edge goes to the artboard's left or top edge, and the last object's right or bottom edge goes to the artboard's right or bottom edge. Distribute Objects spaces the other objects evenly by its button's line, and two objects are enough. Distribute Spacing makes the gaps between the objects equal. With anchor points selected, the buttons space the points among themselves and do not use the artboard. When an action plays, its Distribute Objects and Distribute Spacing steps with Align to Artboard use the artboard that is active then.
   With a key object, the Align panel's Distribute Objects buttons use the Distribute Spacing value (`object.distribute {spacing}`): the key object, or the compound path or selected group that contains it, stays in place, and the objects' left edges, centers or right edges (top edges, centers or bottom edges) end up that far apart, outward from the key object's, in their order. With the field's default value of 0, a click puts every object on the key object's line (behavior reference: [Ask Mordy: Distributing Objects](http://rwillustrator.blogspot.com/2008/01/ask-mordy-distribute.html)).
   Choosing the Artboard tool (Shift+O, its toolbar button, Edit Artboards in Properties or Document Setup, or the Artboards panel menu's Artboard Options…) starts it on the active artboard: the canvas outlines that artboard, and Delete, Cut, Copy, the Transform panel and Artboard Options act on it.