One of the nice features of Azure DevOps is extendibility. Thanks to the REST API, you can write add-ins or standalone programs that interact with the services. One of the add-ins that I like the most is the Work Item Query Language Editor, a nice add-in that allows you to interact directly with the underlying syntax of Work Item query.
Once installed, whenever you are in the query editor, you have the ability to directly edit the query with WIQL syntax, thanks to the “Edit query wiql” menu entry.