How do I measure a part in Machine Preview?
The machining view in the preview pane has its own status bar with similar behaviour to the Status Bar for the main application window.
You can only view the part in the Preview. As soon as you 'Edit...' the selected part it will be opened in the main window - see Machine Part Editing and Measurement and Placement discussions.
Place a Floor cabinet on the drawing plan, then...
Now we will measure the height of the carcass Back (select from drop list).
If using this method, then it is a good idea to maximise the preview pane, i.e. double click the title bar or use maximise button top RH corner, as status bar details will be truncated if too short. Also ensure the cabinet's property inspector is set to Floating.
Clicking on the part edge will display like this...
