I trying to rig a series of character,these rigs have the same feature.
I found rigify had 'sample' to create meta-rig,then using mata-rig to generate rig ,controller and IK/FK bones.
Now 'sample' don't have option what i need(my character‘s arm have 3 bones),i can create 3 bones arm has controller and IK/FK bones myself,but i want to add my 3 bones arm to 'sample' so when i rig different 3 bones arm character , i can save a lot of time to create controller and IK/FK.
i found rigify panel have rigify dev tools
where can i get tutorial to learn it?