Programming Touch Screen SPFD5480

Hello there, I am integrating my first touch screen into a project...I am using the SPFD5408_master library which I found here JoaoLopesF SPFD5408.

I am getting quite comfortable with utilizing the screen, however I have hit a wall when it comes to actually programming touch screen buttons to run functions.

I have gotten as far as having a a GREEN and RED button each which print something to my PC via Serial, but when it comes to lets say running a timer on the LCD, my program seems to block.

Rather then show you my code, I was wondering if anyone had any examples of a working touch screen button, I am having trouble finding examples of something that has an effect on the screen.

Thank you.