Both of those can be accomplished via either the piano roll view or the editable notation view. I most use the piano roll view so in that mode I would do the following:

#1 - just grab the note(s) that you want to move and move them up or down.

#2 - If you know guitar then just pick notes that will work for the desired position. For instance and open G would be G-B-D-G-B-G and a barred G would be G-D-G-B-D-G. If you don't know guitar then just ask as there are a number of guitarist here that will help you.

Back in my day the only time we started panic buying was when the bartender shouted "last call"!

64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware