Add Character Control and Animation to Our Hero/Heroine - Unity 4 Game Development - page 282

In this case, it might be difficult to see which transition is on. We can use the Solo and
Mute toggles to see each transition while we are playing the game. This is very useful to
debug when we have many transitions on the same state.
For more details on Solo and Mute , visit http://docs.unity3d.com/Manual/class-Trans-
ition.html .