Filter by mint within type

Would it be possible to filter by mint within any given type? E.g. here N#854 if I wanted to only see the year lines for those coins minted in Berlin (mint letter A)?

Sorry if this has been discussed before.

Is this what you wanted?

Or this?

Neither,  I mean on the tye page, say I only want to see thr yearlines for Munich (mint mark D) here: 

(sorry am on mobile so not great for screenshots)

Actually same could go for not/only showing yearlines for proofs.

This is not possible. If we could address individual years many issues people have with sets, proof and special finish coins would vanish.

Hm, at least mint dedications are individual entry fields, why wouldn'y it be possible to have a filter above the yearlines?

Wouldn't work for anything in comments obviously, but anything that's a dedicated entry in the database should be possible, right?

Edit: just realised that proofs are not a separate entry but only in comments. Maybe something to consider to make it an encoded field option?

As far as I know individual year line addressing was was never implemented because of the performance issues that it would probably result in.