If you do not use keynotes you could label through keynotes as you can turn off the category just not sure how a table would go. Alternatively you could create an object in a category not normally used as a marker say under specialty equipement and build associated tags to this element which is then able to be turned off when not required or ultimately deleted when the model is issued. Both options would not be ideal but may be a work around option.
My method of accomplishing this is to create a Generic Annotation with a Label tied to a Text / Instance Parameter. The Label is set to display only on Detail Level: Medium. This coincides with my typical methods, which is to use that Detail Level exclusively as an analytical tool that reveals other 'no-print' info such as occupancy sensor ranges, embedded light fixture info labels, equipment clearances, etc.