(Quick disclaimer is that I am also new to Inspection, and I'm on 2014)
My guess for #1 and #2 is no and no.
But for #3, if I understand you correctly, when you click on "Balloon Document" command, at the bottom of the pane, you can OFFSET the balloons differently depending on what type they are.
I believe the offset units are inches. (You will probably want to keep them under half an inch?) The 'X' and 'Y' should be self-explanatory, both positive puts the balloon in the first quadrant; both negative puts it in the third quadrant (bottom left); etc.
NOTE: if you put them at 0,0 they will be on the left side. It appears it does not depend on dimension justification. Play around with it a couple times to get used to it!