I wonder if addition of reactions brought the engine any closer to support a pause.
I often wish for pause butting in two situations.
I want to stop combat from processing so I can dig into combat log and figure out what just happened. It might be less of an issue if log was more readable, but right now having to way couple turns before being able to go back to a roll I wanted to check is frustrating.
Another is trying to control characters in exploration mode. I will admit it is a force of habit - I am so used to party cRPGs having a pause button I find myself searching for pause buttons when I notice a trap or want to reorder my party movement in a pinch. I think unresponsiveneness and lack of precision in party controls would be less frustrating if I could pause the game, make sure that characters are actually going to do what I want them to do, and then unpause, then having to deal with misread inputs in real time.