I think it would be cool if it were possible to use Dotgrid completely from the keyboard. It's almost there, but there's no way to add CPs without mouse/touch. Maybe if < and > were used to switch layers instead of the arrows, the arrow keys could be used to move the selection and space to place a new CP or select an existing one. Perhaps numbers could be used to enter coordinates to position the selector, and tab & shift-tab could be used to step through all selectable elements in order of creation.