Moving folders · Data Parking (the two-pane mover)
What does Pair do in Data Parking, and why are the move buttons greyed out?
Short answer: Pairing links the two panes at folders with the same name and turns on Move, Merge and Relocate. Until you click Pair (and select something), those buttons stay greyed out. Send here works without pairing.
Pairing links the two panes at folders with the same name, and it's what turns on the Move, Merge and Relocate buttons. Until you pair, the panes browse independently and those buttons stay greyed out.
To pair, point both sides at folders with matching names — for example your Projects folder on each side — and click Pair. From then on, opening a subfolder on one side opens the matching subfolder on the other, and whatever you move lands at the same place in the tree.
The buttons also need a selection on the source side. If you just want to drop items into whatever folder the other pane shows, use Send here, which doesn't need pairing.