RBE2/RBE3 Dependent Nodes Selecting Problem

Hello

I want to create multi point constraint (mpc).

When i try to create RBE2/RBE3, i can't select dependent nodes correctly.

I use polygon pick to select nodes and it selects all nodes.I don't want to select all nodes in solid mesh.I want to select only one surface.

I prefer to use surface selector but it is disabled in MPC.

Thanks in advance.

The geometry selections are probably disabled since you have to select nodes. So, you can do one of two things to simplify your selection process. First, under the Display menu selection, you can select Plot/Erase and erase all the FE components that are not on the surface that you wish to select nodes from. Or, under Utilities, you can select List and use this capability to build a list of all the nodes that meet your criteria (i.e. lie on a specific surface).