Ngl the wait block is kinda inaccurate when it's used to wait for less than a second, and I imagine that makes some people (especially animators) pretty annoyed. So basically this thing lets you accurately wait a certain amount of frames (one frame is 1/30th of a second). Also if you put the wait x frames block at the end of a repeat block, it'll just wait that amount of frames before looping. Look inside to see how it works, and use it in your projects if you want.