Reviewed the Capabilities code that is used for filling the options from right click menu. Extended the tests and fixed a bug. The functionality looks ok. It can be seen working on the Context Ribbon Tab.
Changed the mouse shortcuts to the ones used in industry: rotate is done with a click on the scroll button, pan is made with shift+scroll click button. The right click will be used for the context menu.
Will continue with filling the right click menu with options. A problem here might be that a WPF context menu over the OpenCascade OpenGL window that is covered with a WPF transparent overlay might create rendering issues. Probably it will be needed to port also the OpenCascade control to WPF.