Feature summary (what you would like to be able to do and where):

I would like to be able to filter the results of a complex WDQS query by things like the item creator, date of creation, date last edited, etc.

Use case(s) (list the steps that you performed to discover that problem, and describe the actual underlying problem which you want to solve. Do not describe only a solution):

Trying to find

• an item I created at some unknown point on the past, about a geologist, whose name and other details I cannot recall.
• Finding al items about authors that have been edited in the last month
• Finding al items created/ edited by a topic-banned user, that match the topic

Ideally, this would be done by being able to reference things like username of creator as a "pseudo-property" of the item in WDQS.

Benefits (why should this be implemented?):

Ease of finding required items.