The label of the tab containing the query editor should be changed to "Advanced Query (CQL editor)" as to clarify to the user which kind of query are supported (there are multiple standards for filtering data depending and they depend on the backend software).
The label of the tab containing the query editor should be changed to "Advanced Query (CQL editor)" as to clarify to the user which kind of query are supported (there are multiple standards for filtering data depending and they depend on the backend software).
In addition, please, add a button in the CQL editor tab with the label "Help on how to write a CQL query" should be added linking to https://docs.geoserver.org/stable/en/user/tutorials/cql/cql_tutorial.html