We have "Cut all" and "Cut marked only" options for the woodcutters. The first one is barely usable because you'll always uncover glades when you don't want to. So you have to mark the trees every time to avoid this, which is annoying. It also reduces lumber camps efficiency because they they will go for the marked trees, not for the nearest ones.
Adding "Cut unmarked without uncovering glades" options will be nice.