The View section of the action bar provides commands for hiding or showing machining elements.
Notes:
Hiding objects requires Shading (SHD), otherwise they are set to full transparency.
In Material Removal mode, for the simulation, the part
design is set to full transparency, to display only the stock.
If Display tool path during machine simulation is
activated, the modifications done with the View section commands are not saved
when you exit the current session.
Hide/Show parts elements
Hides or shows part elements.
The following commands are available in all the sections of the action bar.
Hide/Show Machine
Hides or shows the NC machine.
Hide/Show Design Fasteners
Hides or shows design fasteners involved in drilling
riveting operations.
, otherwise they are set to full transparency. 
