its maya.
thats pretty much standard now in terms of character set up; to have a synoptic window much like kaydara. here are some rig links.

https://www.aniguild.com/abel/class.html
https://andrewsilke.com/generi_rig/generi_rig.html
this is one of the best rigs. u can see the free movie to see how it works. https://www.lostpencil.com/free.html