For an NPC: Simple: Quick and Dirty Invisible Token Tracking Using Basic Fog of War API solution: The Bump Script, available through One Click installation. For a PC: This is a more difficult solution. There are some scripts that echo token locations across pages, but it requires more than a little bit of pre planning. You could use the text tool to number and letter the grid, allowing the player to whisper "I move from B14 to C 12", but that also requires a bit of setup. There's not a great and simple solution to this, but then again, neither is it easy to do on the tabletop. Some of the suggestions above are probably the best way to go. Hopefully, unless your game features a lot of PVP, it's not something you'll need to deal with often.