@trevor said:
a step on the cue sheet
Are you using 'Cue Sheets' or are you referring to 'scenes' as cues?
If you are talking about Scenes, you can add a 'Jump' actor with a relative setting of -1, connected to a keyboard watcher. This will move you back 1 scene.
Or, open the 'Edit Go Triggers' dialog from the 'Scenes' menu, and assign a Go Trigger (keyboard, MIDI, or HID) to the 'Previous Scene' direction. This will apply to the entire show, while the Jump actor needs to be added to each scene.
If you are using the 'Cue Sheets' feature, you are able to send keyboard commands to the scene as define in the Cue Sheet Editor. These allow for what you can think of a sub-cues within a Scene. Now if a Cue is triggered, it could do all sorts of things, including starting timed operation, looped operations or interactive controls. It isn't practical to be able to step backward in the cue sheet since there is no clear definition as to what 'rewinding' would be. You can however, build some form of step back into your patch, that resets things to certain configurations, however this is very much a custom approach.
If you are unfamiliar with Cue Sheets, you can watch an introduction here: Working With the Cue List Editor and Cue Sheets