Filtering with "Match none of the above" and by "No value"

Sometimes when filtering test suites or test runs I want to filter multi-Select fields by cases that don't match a specific criteria. Currently there's "Match all of the above" and "Match any of the above" but no "Match none of the above".

Similarly, I also occasionally want to filter for cases where a specific Multi-Select field doesn't have a value.

Currently it doesn't seem like either of these are supported. Are there any easy workarounds and if not, can I request this functionality?

Thanks,
Ansar