A way for users to Link/Group adjacent modules in racks.... therefore allowing you to move all modules that are linked in that group with a single move... keeping them together/adjacent. Essentially turning a group of modules into a single module as far as moving is concerned. And of course a method to unlink/ungroup.
For instance the 4MS QCD Expander, QCD, QPLFO are always next to each other in my racks. It would be convenient to be able to link them in my rack and move them all together as if they were a single module.
This would also allow a user to link and move an entire row up or down quickly.
...Personally I signed up for a "Unicorn" account just to support the work the basic functionality requires.... and not so much for the additional features. I think a few more features like this and my other suggestion above would make the unicorn account a greater value from a practical stand point to those on the fence.