You could select the 10 parts and create a sub-assy (only temporary if you want it to be). Then just mate/move the entire sub-assy of those parts as you like.
Once finished and everything is where it needs to be, you can dissolve the sub-assy and fix the individual components in their positions.
Open the Mate Manager
Switch to Multiple Mate Mode
Select the Lock mate option
Select the fixed part in the first field, and the parts to be locked in the second field
Click the green check mark