Todor Nikolov writes:
I have another video about Rigify for you.
This one is a little niche but it could be useful.
The pre-built Meta rigs (human/wolf/horse/shart etc.) are just quick presets. You can easily create your own meta rigs. And you can even add them to the Shift+A menu so that you can access them at any time.
Here is how:
I have followed your tutorial but when I re open blender the it does not works . it does not show me the saved custom metarig.