How to play animations files in one model gather?

Hi folks,amigos,comrades and dudes here.I use the animation-mixer,but it can only play anim replace another one.I wanna mix it.For example,i need play blink action and walk action,official mixer can only play 50-50 to each action.But in 3D software,i can play them currently like 100-100.Is that any reflutions can reach this?

I replied in your other thread, but:
Might help you…
Also the clip has a .weight parameter you can change to fade them in and out.
Can be tricky to get it all right, but the animation system is actually pretty flexible.