New block -- "When stop sign pressed"

[The_True_Odst]

When you click the stop sign the “When {stop sign} pressed” button will activate

[Tyller_]

@the_true_odst I think this has been stated before, though it could be helpful, the intent of the stop sign is to stop the project, though I think this feature would be very useful for the intent of safe stopping, maybe have it so that if a user tries to close a project tab it triggers this block aswell