<scene>
So here you are again, inserting a new view that needs to be ballooned, you have multiples of the same part scattered around the assembly and would normally have to pick one then start the process of attaching multiple leaders to the same balloon over and over.... but what if you could attach balloons to all the parts then select the ones you want to combine and with a single right click menu item snap them into a single balloon call out. </scene>
Proposal:
Currently for every added leader that is needed for a single balloon, the user must make 3 mouse clicks (or more if single leader is not selected).
With a combine balloons command, all of the selected balloons could be joined together with less repetitive clicks.
