Weither your new or, not to mmd/ pmx editor not all guides are that usrful so if ypu want to learn to do rigs like this wolfrun model I updated here are some of my guides and, fixs if you run into any issue. Hopefully these help people out.

how to cteate/ cpnnect bones: https://youtu.be/2Wu2W3efOys
how to make good physics: https://youtu.be/wdm1fT5ADhA
ik feet bones not working right:https://youtu.be/0Na37AnAUh8

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