It's a little counter-intuitive, but you need to put it in a quick use slot, the click it and click somewhere on the map. Just a hint - you can only use items on stuff in the environment that "lights up" when you put the mouse over it (in other words, things that are highlightable and have a description). Hope that helps. -The Souljourner
Well i do that--put it in a quick slot, left click it and left click a gravestone that lights up--nothing happens. I'm trying to get into Terwilleger's grave. -
Alternatively, in the inventory screen, drag the shovel over 'use' button (a hand), then point the grave.