Fillter when a column is null/empty

Any one know how I can place a filter when a particular column is null/empty and when a particular column has value?

Alternatively, is there a wild card character when doing searches?

Figured it out.

No wild card needed, just just need to leave the filter literally empty and change the “is equal to” / “is not equal to” only.

And you need to show the actual column on the form list if you want to use said column as filters.