You open this dialog box by right-clicking anywhere in the Pin Planner device view, and then clicking Find Swappable Pins.
Allows you to find available pins in the device view to which
you can reassign, or swap the location of, a selected node. You can
search specific I/O banks, edges, and VREF groups to find swappable
pins.
Important: Important: You must turn on the live
I/O check feature to swap pins.