How to set up transitions between blend poses in anim BP?

I have an animation blueprint with different Idle/walk/run state machines for each weapon stance, and a blend poses by enum node for switching between them like this:

however, I wanted to play a transition animation when changing between states, such as a holster / draw animation.

What would be the best way to do this?

Ok i was dumb, you just need to play the montage anywhere into the default slot and add that to the animgraph, and it’ll blend just fine