Answer:
The "Nodal Constraint" function allows you to connect nodes ideally.You can select two types of coupling.
In the case of the "Plane" coupling type, the displacements in the coupling plane as well as the rotations are coupled perpendicularly to the plane. Thus, you can model stiffening slabs, for example.
In the case of the "Equal Condition Constraint" coupling type, you can define the coupled displacements and rotations individually between the nodes.
The nodal constraint function was shown on Info Day. You can find this topic at the end of the attached video.
