For those who need it, from those who give it, is a grid maker plug-in, allowing you to choose the size of the grid, and the ability to preserve the background of your selection.
Download DLL v2.0: GridMaker.dll
Download Source v1.1: GridSRC.zip
Download Source v2.0: GridSRC_2_0.zip
BoltBait is again responsible for the Render Function, whereas I did the niceties of a UI.