@jpilarski
I agree this would be a good feature to have on uiFlow. Specifically, which block are you referring to on Adafruit MakeCode? Is it the "run in parallel" block?
0_1580328765943_Screen Shot 2020-01-29 at 3.11.52 PM.png
However, from a MicroPython perspective, multithreading doesn't seem to be complete yet, according to this link. "This module is highly experimental and its API is not yet fully settled and not yet described in this documentation."