Extra Volumes

Is there a simpler way to attach a LV to a AppVM?

sudo lvchange --persistent y --minor NN VG/LV

on thin_pools gives me

Command on LV X/Y with invalid LV type thinpool.
Command not permitted on LV X/Y.

I actually just want a second internal HDD to use in 2 or more AppVMs simulatenously.

This seems to be the solution I am looking for: