NX MB1 popup menu is not appearing in the manufacturing application

In Modeling, the user gets a popup menu when clicking the left mouse button in the graphics area. This popup menu is not appearing in the Manufacturing application.

This is because the Manufacturing application defaults to having the Select Tool Path option toggled 'on' in the ribbon bar. The UI is expecting the user to be picking tool path objects with the left mouse button, so the popup menu function is disabled. To enable the popup menu, turn off the Select Tool Path toggle on the ribbon: