FlightSQL, InfluxDB 2.0 Serverless and Grafana query variable support

Hi, I was trying the FlightSQL plugin to query InfluxDB Serverless 2.0 from a grafana dashboard, and i noticed that it is not possible to use query variables, as the query input box of the query options is missing as shown in the pic. Is there a workaround for this?
Screenshot from 2023-07-01 17-24-29