Keyboard Shortcuts

RMT Compose is pointer-first. The only global keyboard shortcuts are undo and redo. Everything else on this page is either scoped to one panel, or is a modifier that changes what a click does.

Global shortcuts

Shortcut	Action
Ctrl + Z / Cmd + Z	Undo
Ctrl + Y / Cmd + Y	Redo
Ctrl + Shift + Z / Cmd + Shift + Z	Redo

All of them are ignored while the focus is in a text field, a textarea, or any editable element — so typing an expression into the note widget never triggers them.

The module bar's toolbar carries the same pair as buttons (Undo (Ctrl+Z) / Redo (Ctrl+Y)), as does the "+" menu. All of them drive one shared history.

Escape

Escape is not global. It does something only when the thing it closes is in front of you:

Where	What Escape does
Focus inside the Settings panel	Closes the panel. But if the focus is in a text, number or select field, it blurs the field instead — press it twice to close the panel from there.
Focus inside the group widget	Clears the multi-note selection. The same as its × (Clear selection).
A confirmation dialog is open	Cancels it. (The Cancel button also holds focus when the dialog opens, so Enter cancels too.)
Focus in the module-bar search field	Closes the search field.

There is no global "Escape to deselect". To clear a selection, click empty canvas or use the group widget's ×.

Modifiers and gestures

Shift is load-bearing in three places. On touch, a long-press — 500 ms with the finger held still, within about 8 px — is the stand-in for Shift.

Mouse / trackpad	Touch	Result
Shift + drag on empty canvas	Long-press empty canvas, then drag	Marquee-select notes
Shift + click a note	Long-press a note	Toggle it in or out of the multi-selection
Shift + click the Play button	Long-press the Play button	Toggle loop playback
Ctrl/Cmd + wheel over the canvas	Two-finger pinch	Zoom the camera. The browser's page-zoom is suppressed app-wide, so Ctrl + wheel never resizes the page. Over the top bar or a panel it does nothing at all.

The long-press is non-committal on purpose: moving more than about 8 px, putting a second finger down, or lifting early all cancel it, so panning, pinch-zoom and ordinary note drags are untouched.

See Multi-Note Selection for what you can do with a group once you have one.

Native browser behaviour

These are not app shortcuts, but they are real and worth knowing:

• Space or Enter on a focused button clicks it, as on any web page. If the Play button happens to have focus, Space plays or pauses. There is no global Space binding — click elsewhere and it stops working.
• Shift + Space on a focused Play button does not toggle loop mode. The app deliberately rejects that one.

Shortcuts that do not exist

Do not go looking for these — none of them are implemented:

Space (play/pause), Escape (global deselect), Delete / Backspace (delete a note), Ctrl + S (save), Ctrl + O (open), arrow keys, copy/paste, zoom shortcuts.

There is also no double-click gesture anywhere in the app, and no right-click context menu. Repeated single clicks on the same spot do stack cycling, which is a different thing.

History

Depth	Up to 50 states — fewer for a very large module, because retained snapshots are also capped at 12 MB in total.
Tracked	Note creation, deletion, moves, resizes, transposes, expression edits, group moves and deletes, module loads, Reset Default Module.
Not tracked	Camera (pan/zoom), playback position, the lock, playhead tracking, loop mode, and the module library.

The redo stack is cleared as soon as you make a new change after undoing.

WARNING

The undo/redo buttons in the module bar's toolbar drive the note history, not the library's. They will not restore a category you deleted from the library, or undo a module you dragged into it.

History lives in memory. It is gone when you close the tab — the module itself is restored from browser storage, but its history is not.

Next

• Multi-Note Selection — what the Shift gestures are for
• Mobile — the long-press gesture set in context
• Top Bar — the buttons behind Undo, Redo and loop playback