Hello, like others i am interested in that neat little thing (control panel), could you explain or make a tutorial on how to make such widget ? It could come very useful for may sort of things! Thanks!
Well, i found out that the answer to this question lies in the "Fundamentals of Rigging" Course (Chapter 1 - 6th tutorial - Object Constraints: Transformation).
Yes, i posted the answer to my own question, in case other people have the same question.. :))