Cant Edit Snap Area

Seems like an obvious feature - when creating a new snap area or editing an existing one, how can I change the window position and size? Seems like the only option is to delete and add a new one. I can't believe this obvious feature doesn't exist!

When editing a snap area you can change the dimensions here:

thanks. I guess that works. But a drag / mouse-resize makes a lot more sense from a usability perspective.