When building filter options within Experience Builder, I have found the need to be able to edit and create filters using SQL code rather than relying on the current development options that are provided. It's very handy that the widget provides the SQL code once you have built the filters so that you can see it, but not being able to edit or copy and paste the expression from one Experience to another makes for a cumbersome process of rebuilding the filters one by one when the need arises.
Provided output SQL that is not editable within the provided window
Filter Widget - SQL Expression Builder