In complex state machines, it is useful to preview the operation of some parts of the machine separately. For this, you can use the Mute and Solo functionality:
You can set up multiple Solo transitions to play only those that have Solo enabled. If one transition has Solo enabled, Unity enables Mute on the other transitions. If both Solo and Mute are enabled, then Mute takes precedence.
You can set up Mute and Solo states either from the Transition Inspector, or the State Inspector, which provides an overview of all transitions from that state.
Unity displays Solo transitions in green, and Mute) transitions in red:
In the example above, if you are in
State 0, only transitions to
State A and
State B are available.