File > Options > Results Format, suggest a revised GUI:

-- Under Results Format on the LHS, add a line item per DB that is currently displayed on the RHS.

-- Then, for each DB, on the RHS, display all the data types, their formats and NULLs option. This way, a user can easily see all data type display options for a given DB.

-- This is somewhat similar to what we do w/ "Scripts" today.