So the players select a hotspot, they play through that sequence - maybe it's a one-off fight, maybe it's a staged setpiece, it varies, more on that shortly. And then you begin a new PHASE. Time ticks forward one unit, the players get some free actions, and then decide again.

There's a lot more at play here, and a big part of the thing making this project both Big and Stressful is - I'm in a spot where I already run multiple games like this, I know it works, how do I translate "this works seamlessly FOR ME" into "here's how to DO it all" in a useful format?