Animation and Rigging Tools: FAQ, Known Issues and Feature Roadmap

you can run this quick python script and make it a shelf button if you want:


import maya.cmds as cmds
cmds.select("root", hi = True)
joints = cmds.ls(sl = True, type = "joint")
for joint in joints:
    cmds.setAttr(joint + ".v", lock = False)
    cmds.setAttr(joint + ".v", 1)