I am trying to categorizing my pose library into many "sub-libraries" such as mouth, eye, expression.  However, blender only keeps the last sub-library selected b4 closing the file, and loses all the other when the file reopened.

Currently, 2.79

What do I need to do?
Is there anything else I have to do to keep other sub-library before closing the file?

Will move to 2.8 after this proj.  Hopefully, the principal can be transfered.

Thank you very much for your kind help.
[![enter image description here][1]][1]


[![enter image description here][2]][2]


  [1]: https://i.sstatic.net/QcVYj.png
  [2]: https://i.sstatic.net/SmF8e.png