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.