Using properties - materials panel to render objects/layers

Hi, recently purchased Rhino 5.5.2 for Mac.
I’m unable to open the properties tab shown below to render objects/layers.


In the evaluation copy (for mac) I used before this purchase, and in the Windows vr. 5.5 I was able to open the properties tab and ue the materials panel to render objects/layers.
Please could someone explain to a new how to render objects in Rhino for Mac 5.5.2
Thanks for any help

Hi David - I don’t understand what opening the Properties panel has to do with rendering objects. Could you explain what you are doing and what you are trying to achieve?