WORLDEDIT-2582 - Reported by GnomeffinWay

In some cases, the ability to choose what not to replace in an area would be a useful time saver, in such a way that I might be able to do:

//replace -grass,-dirt air

Which would replace everything but grass and dirt in the selection with air.

Just a small enhancement, but it'd provide for some useful functionality

Comment by wizjany

//gmask !dirt,grass
//set air

Comment by GnomeffinWay

facepalm