Lemon wiki

Undo and history

Lemon Studio keeps one history for the whole project. Press Ctrl+Z to undo and Ctrl+Alt+Z to redo. Ctrl+Shift+Z also redoes. The EDIT menu names the step it will act on, such as Undo step seq edit, and the status bar says what a key did.

Jump back with History

The browser’s Current project ▸ History lists every step by name, from Last reset, which is the project as you opened it.

VIEW ▸ Undo history opens the list.
Click a step to go back or forward to it. Undone steps are grey.
Make a new edit after going back and the undone steps are gone.

What counts as a step

Each of these is one step, whatever it changes:

Notes and clips: an edit in the piano roll or the arranger, a click on a step, a whole command such as Quantize…, and each recorded take.
Knobs and faders: one drag is one step, and a typed value is one too. A run of wheel notches counts once.
The mixer: routing, effects added or moved, names and colours, tracks added or deleted.
The rack: instruments added, replaced, moved, cloned or deleted, with their notes, clips and settings.
The project: the tempo, the project’s settings and FILE ▸ Import ▸ MIDI file… into the open project.
Plugins: a parameter changed in the plugin’s own window, one step per gesture, and a preset loaded into it.

What doesn’t undo

A mixer track’s mute and solo, which make no step.
Arming a track for recording, and the Record button itself.
A plugin’s own undo inside its window, which is separate from Lemon Studio’s. Changes a plugin makes by itself, such as picking from its own preset browser, make no step because Lemon Studio isn’t told about them.
Copy to B and Restretch all, which don’t change what’s in the project.
Window positions and the program’s own settings, which aren’t part of a project.
Opening or starting a project, which starts a new history. The history isn’t saved in the file.

Tesla keeps its own history for edits to its audio.

Settings

OPTIONS ▸ General settings has an Undo history group:

Maximum undo levels: 100 by default. Past that, the oldest step goes.
Undo knob tweaks: untick it and knob and fader moves make no steps.
Alternate undo mode: on by default, as described above. Off, Ctrl+Z flips the last step back and forth, and Ctrl+Alt+Z steps further back.
Show undo history in the browser when undoing changes opens the History list when you undo.
Show recent changes at the top puts the newest step first.

Good to know

Undo only goes back through this session. For anything older, FILE ▸ Restore backup… opens the project’s newest backup. File settings sets how often backups are made.