When I started with BV and I wanted to change location (even cm's) of a gorup of text and pictures I had to change them one by one. I even placed a request on the forum, but didn't get a satisfying reply.
I figured out the following:
IF you wish to relocate a group, but need to keep the distances between them select each item by rig***licking and holding shift (make sure that the lock is off) then let the shift go and place your cursor on the group. Thsi way you can move the group as a whole.
It helped me a lot. Good luck,