[charlieluce]

From my experience:

For the first, you can do Enact Script in Tactical Mode. You can even create a script while in Tactical Mode, go back into the Stage, and enact it.

For the second, I'd just Defer the character and have them "Act" at the end of any turn that they revive (then again, I'm not sure I fully understand that rule).

For the third, you have to make sure that you first select the character is Done Deferring, then have the character Act. I've given myself trouble by doing it wrong.

For the fourth, one of the things you can adjust by clicking the character picture to the left in Tactical Mode is the initiative number.