We see that there is a tab called "Lookup Filters" when dynamic query lookups are created. How to create filters here?
A sample screenshot of the relevant tab is provided below.
Latest version tested against: 15.9.2
Fields become available for lookup mapping under the "Lookup Filters" tab when "Field Element Type" is chosen as "Pull-down" in the "Content" section of the "Browse Window" tab.
The resultant effect of this configuration would be as below. Notice that "ooc" is a pull-down field instead of a normal string field.