Hello, I'm new to Materials Studio. I have been learning for a few days. My objective is to build a certain cylindrical structure, with 18 molecules per layer. Each molecule is composed by a group of atoms and has a specific dipole moment. In the first place I couldn't figure out how to position each molecule in a specific coordinate by setting a well defined origin. If could translate and rotate the whole molecule by fixing one central atom this would make my work much easier. I tried with "Motion Groups" but I couldn't figure.

The program's help wasn't very helpful on that regard.

Is there anyway to set an atom within a molecule as an origin and refer to it for translations and rotations?

Thanks