Transferring from Gaia to Multiman - Simple questions

I currently have Gaia Manager 2.07 (or 2.09, the latest one) and am interested in using Multiman.

I have several games on my internal hard drive that I run through Gaia. Do I need to do anything specific to have those games read by Multiman?

I plan to delete Gaia manager after I install Multiman. Do I need to do anything specific to prevent deleting games from my internal hard drive as well?

Thank you so much