Running multiple versions of a app/simulating screen prompting topic

Id like to run 2 versions of a app is this possible? Id love to do this is a unrooted scenario but if its not possible my phones can be rooted.

My second question is how easy/safe would it be to simulate a button press externally? Looking for creative ideas here I need to hit a prompt once a hour on my phone. I dont want to use internal apps because im pretty sure those will get noticed.

Thanks!