For me it works as far as there is a unique MASTER and all other three edges are slaves. The master is the largest edge to give support to all the other.
Since you seem to be Polish and you are interested in tie constraints, I can recommend you this article: Więzy tie w Abaqus – jak z nich poprawnie korzystać?
It’s about Abaqus, but most aspects are the same in CalculiX (apart from some additional parameters Abaqus offers).