How to use a mouse focus trick to easily extrude a bone perpendicular to the rest of the armature skeleton (say, the foot).

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  3. Continuing the Armature from a “Butt” Joint (3 of 8)
  4. Creating a Vertex Group in Blender (7 of 8)
  5. Adding an Armature to a Mesh in Blender (1 of 2)