Multiple action?

Dear Members,
I have to “Action” , hand up and down and hand left and right,
On Action editor I can insert hand up and down, but how can I insert hand left and right ?
Everytime I insert, it returned to blank action ,

Any clues? I’m using blender 2.8


Hello, your question is hard to understand, maybe show more screenshots, share your file, etc…

I want to add PoseLibrary to 266, how can I do that, please see my screenshot, thanks