Start button in subprogram

I made two seperate programs. In both programs there is a wait function for the high vallue of the startbutton. I also made a program with this two programs as subroutines in it. I only want to press the startbutton one time in this program. How can I achieve this fuctionality.

Can you send a picture of the wait functions in the two programs being used as subprograms?

Is this something that can be solved by wiring your button into an IO that sends the play command?

I get it working with the IO settings and delete the wait statement in the program.