There's nothing so clunky as a restart button in Prune. If you're unhappy with your tree, you simply cut it off at the base of the trunk, and begin again.

UB is undertaking a large-scale tree pruning project on its North and South campuses to improve tree health, enhance safety, and support long-term sustainability as part of a broader campus forestry ...

A project is underway to prune hundreds of trees on campus in an effort to protect and enhance their health and longevity.