Keyboard shortcuts

Quick reference for keyboard shortcuts in the Impossible builder.

Undo and redo

Action	Windows / Linux	macOS
Undo last change	`Ctrl + Z`	`Cmd + Z`
Redo	`Ctrl + Shift + Z`	`Cmd + Shift + Z`

Undo and redo affect the staged state. They do not affect published content.

Action	Shortcut
Stop streaming response	Click the Stop button (square icon) while the agent is responding

The Stop button appears in place of the Send button when the agent is busy.

Standard browser shortcuts also work:

Ctrl + F / Cmd + F — Find in page
Ctrl + R / Cmd + R — Refresh
Ctrl + W / Cmd + W — Close tab (you may see a confirmation if you have unpublished changes)

If you have unsaved (unpublished) changes or an active agent turn, closing the tab may show a confirmation dialog to prevent accidental loss.