Search on DTTG via the URL scheme: scope prefixes?

I’m guessing this isn’t possible, but just in case: are there any scope prefixes in DTTG besides name:, content:, tags:, and comment:? I’d love it if label: worked, but it doesn’t seem to.

If not, count this as a feature request!

No, there are no other search scopes in DEVONthink To Go at this time. This may be in a future release.