Right now the faces blocks on UI Flow are really basic, but there is not much you can do with them. We need blocks that do more.

For example the other day I was attempting to make a To-Do list using the calculator face. I wanted a set list of things I had to do, but when I hit a number corresponding with a task, it would change the color of the text, and play a sound. I found this to be impossible, because you cannot make a if statement to test for a specific key being pressed on the face. I found the same problem with the keyboard face, there is no way to detect if a certain key is pressed.

TL;DR We need more in depth blocks for the M5 Faces.