There's a set amount of move shown in the bottom left of the board (or right of shinmy). It might be hard to tell from UI lack of color contrast with background lol. You basically work with what resource you get from doing the thread, with holding Alt key showing info.
I got it! Thanks. The colors seem a bit unbalanced (yellow and blue are much better than green or purple). There aren't really enough turns for me to often want to remove modifiers (it's better to just use a red thread to reroll them, when it's safe to do so). Neat concept!