Exclude from numbering

[Sebastian_Eiche]

I know there's an existing idea for this here: Idea

But I want to add another idea. It would be great to have a checkbox for "excluding object roles" if this checkbox is checked, all object wit specific model roles will not used for numbering. 
The model roles which should be used for this setting maybe could add in an extra table called "not_numering" or with a checkbox by creating the role (for later changes a row in the table would be fine). So all modelroles which are not ticked on, are automatic exclude from the numbering. 
This would help so much for creating BOM-lists and details, because then we could use the modelrole for the detail styles too.

numbering

add role

role table