For some reason you can not turn a suppressed component in and assembly to Reference item to remove it from the parts list.
This is an issue since to unsuppressed the components I have to close the drawing so I can change LOD to Master. Then I can select the items I want as reference save and then reopen the drawing...
Either suppressing a component should remove it from the BOM or have the option of turning a suppressed component to reference with out having to unsuppressed.
The best improvements are usability of the software not bells and whistles.