Should we differantiate between Commemoratives and Theme items?

Should we differentiate between "Commemorative coins" and "Theme coins" and probably banknotes too?

I see some coins which dosn't commemorate something (at least to my knowledg). Like the ship and tower coins of Denmark.
Something I'm (even) less confident in, is the Greek coins commemorating the regime of the Colonels. But isn't those more a serie of coins, to fit the rulers of Greece, than commemorating the revolution?

Or does we just have one term for those type of coins, in order to keep it simple?

We already have commemorative event and series no need for an extra type.

"Themed" coins get tags the problem is that tags get added only veeeeeery slowly and unless I've overlooked it in the Numisdoc it is not so easy to know what tags exist already so you'll have to scroll through the drop-down menu.

Tagging is slow, because you cannot exclude the search results with already added tags (when searching by strings in search field). I have actually stopped tagging, since I am opening the pages, which already have certain tag, futile work...
LP