Macbook Pro trackpad

Hello to all! Im a relatively new Rhino 5 for Mac user and I cannot get the Popup
menu to come up with my trackpad? Any suggestions?

(If there´s not a better option) you may have a look at the ***bettertouchtool***.

Are you talking about the Secondary click (Click with two fingers)? In macOS’s System Preferences > Trackpad, is Secondary click enabled/checked?