Undo and Redo

Every change to the show can be undone: deleting a cue, renaming a group, changing an address, storing a preset… E&S Lighting keeps the history of what you have done since the show was opened.

Undoing, redoing

• If a command is in progress on the pad (a lit action, a command line started), Undo cancels it first, without touching the show.
• The keys are grayed out when there is nothing to undo or redo.
• In a field being edited, Ctrl+Z and Ctrl+Y belong to the field (they undo what you are typing).
• Making a new change after undoing clears what could still be redone.

What you see as a single action is a single entry: deleting 12 selected cues, copying 3 views, giving a value to a whole column… is undone with a single Undo.

The History window

"Add a window" → Control → History shows the list of changes, from the oldest (0: Show opened) to the most recent. Each row: its number, its time, what it did ("Delete Cue 3", "Rename Cue List 2 to “Act 1”"…).

• The current position is highlighted; what was undone (and can be redone) is dimmed.
• Pressing a row goes back to that moment: everything in between is undone, or redone, at once.

What goes into the history

Everything that changes the show and that you meant to do: objects created, deleted, copied, moved, renamed; stores (cues, groups, presets, views); patch, show profiles, settings of Cue Lists, Faders, DMX outputs; main windows (On / Off, names); Park and Unpark…

What does not

• the selection (cells, fixtures);
• the programmer (values, effects being set): it is a workspace; Clear handles it;
• what plays: Go, Fader, Flash, Off of a Cue List, Actions run, triggers by Timecode or DMX Input (but if an Action stores or names an object, that does go in);
• the place and size of open windows (kept separately, see Windows and Views);
• computer preferences: language, category colors, license.

Limits

The history belongs to the session:

• it is emptied when you open another show;
• it keeps the last 200 changes (fewer if they take a lot of memory, for example cues with thousands of values); the oldest ones go away on their own.

The show itself is saved as you go: there is nothing to "save" before closing. See Shows.