I've just started using keyboard navigation on Modular Grid and I think it would be nice if there was an option when you're in Move mode to swap the module with its neighbor. It's nice to be able to move a module to either end of a row with < and >, but if you just want to move it on the other side of a couple of other modules, you have to move the module one HP at a time. Maybe if you could use Shift + left or right arrow key it would just switch the positions with the nearest neighbor.

Thanks!