You can define a pin connector through more than two cylindrical surfaces
in one definition.
An improved user interface
allows the definition of a single pin connector applied to multiple cylindrical faces
(maximum ten). You select all coaxial cylindrical surfaces that are attached to the pin
in a single selection box.
For example, for the two models shown below, you can define two pins (one for each model)
to connect the two rotating parts and the six cylinders of a hinged plate.

This improved pin connector definition is available for linear static,
frequency, buckling, and linear dynamic studies.