@Citizenbushido
This is the one I use. Have ONE map in your main backpack, the one you wish to dig (you can carry more in a bag in your pack if doing multiple maps)
So: Shovel, WaitForTarg, Target by Type, Delay 1.3 secs. I just drag the chest icon used into a hotbar and click it when tmapping, it gives you a cursor ever 1.3 secs to hit the ground around the spot you are looking. You could assign a hotkey to it if you wished.
Hope that helps.