I'd like a feature to highlight untagged model elements.
There are many model elements which may or may not need a tag, such as receptacles. If we use "Tag All", we'll get a bunch of question marks that we don't need.
I'm imagining a dialog similar to the Tag All dialog, where the user can select the model categories of interest, but instead of tagging, it just changes the line color (user-specified color). That way the user may review each item not tagged and ensure it doesn't actually need one.
