Don’t forget this thread:
At that time I wasn’t fond of the idea of using tags but perhaps times are changing…
One could think that, in addition to the user assigning one or many tags, Rhino also assigned tags automatically for object type (line, curve, surface, polysrf, solid).
The Tag Manager window could have 3 fields (rows): the current tag that is assigned to new objects, all tags that are assigned to the currently selected objects, and tags available for use.
@4dsynergy Roland, even filtering through a spreadsheet environment is mentioned here 