Give the ability to mute hits on auto-features.

Often using an auto-plane with spiral movement, asymmetrical hole patterns cause hits to land in a hole. Adjusting auto-planes manually is not fun when any slight changes require that the hits be regenerated, and you have to start back from scratch. With the ability to mute hits, you can adjust the hits by hit count and spacer, then simply mute any hits that conflict with other features.