Separate Action and Instance on the buttons

[dbiser99]

Describe the feature
Ability to copy buttons and change which instance they affect without changing or reselecting the action. Sub-request, add ability to copy an action within a button (and then select the instance separate from the action.)

Usecases
I find I do a lot of work where I am copying buttons that all have the same action and/or action parameters but want to control different devices (instances) or I'm copying actions on a button to control the same function on multiple devices (instances.) As examples, copying a button which starts a cue playing to another button to start that same cue on a backup device, or in the multiple actions on a single button front starting a record across multiple record decks with a single button. If done as I'm envisioning the implementation, the action list could/would additionally be limited by the selected instance giving an added bonus to usability. With even a modest number of devices the current method of having to re-add all the actions is not only tedious but the list of actions one needs to search through can get quite large.