You have just been given some great answers from Eriequiet, All I can add is the following for when your PM3 arrives.
https://forum.dangerousthings.com/t/handy-dandy-tips-and-tricks/13041/14?u=pilgrimsmaster
Other than that, you sound like you are looking for some solutions for things that aren’t even problems yet, and may never be!
I get that forewarned is forearmed, But we could answer your questions all day; and Most of the answers are already on the forum eg. Removing Blue cloner password
https://forum.dangerousthings.com/t/handy-dandy-tips-and-tricks/13041/11?u=pilgrimsmaster
Put it this way, Before you do anything and you are not sure, search for the answer ( The search function is really good on the forum ) and if you can’t find the answer, just ask, you won’t have to wait long for a reply.
This is also a great place to start if you havent read it yet
A couple, there is a dedecated thread and this combined one