why do we need the bones in and out?
the top and bottem cant replace them?
Hi Evyataraya,
They act as the in/out handles for the bendy bones. Sometimes it's possible to use the actually controllers for this and other times it is not. It all depends on the alignment in world space and the purpose of the controller.
There is often many ways to solve a rigging problem, however, it's best to show you a solution that works in every situation.