(Animation) How to add more than one transition?

I can add one transition, which is “Reed-Idle” to “Reed Walking”, but I cannot add more, when I right click at “Reed-Idle” again, the option simply doesn’t show up.

Found the solution
I had to double click the state, then right click.

I have the same problem.
Adding transitions after switching to debug.
But I couldn’t find a fundamental solution.