Attach a rev balloon to a note, or bom line?

Hello; 

           I'm trying to remember if you can attach a rev balloon to a note, so that even it the note moves the balloon will move with it. This would be different than if the whole view moves it moves with the view. It looks like the group command doesn't come up if the two are selected. 

     Also, are there ways to attach a rev balloon to a particular line of a bom or the bom in general, as sometimes the boms change, but the balloon remains in position no longer identifying the proper line item, creating an accident ready to happen if missed. 

Thanks in advance for any input; 

Rob_D SW 2019 sp5