You can display model volumes according to applicable meshing techniques. You can
also isolate, hide, or restore the display of volumes in the mesh
part.
Yellow colored volumes indicate that a sweep technique can be used, with
hex and possibly wedge elements. Orange colored volumes indicate that a free meshing
technique can be used, with tetrahedron and possibly pyramid elements.
From the Display section of the action bar, click Meshability.
Yellow volumes are meshed with a sweep technique, and orange volumes
are meshed with a free meshing technique.
Choose a command from the Meshability View dialog box:
Click and select a volume to isolate it and hide all other volumes.
Click and select a volume to hide it.
Click to unhide all volumes.
Select Show hidden edges to show the edges of hidden
volumes.
Close the dialog box to return to the normal model view.