Currently only a select few parameters are editable. Mostly parameters which are not accessible from the Gaia’s front panel itself.
It would be good however to be able to edit all patch parameters.
This feature was requested by Karlitoz Way.
This hasn’t been done yet because adding UI controls for everything is a lot of work.
However, it shouldn’t be too hard to replace the parameters text area with a table, where the value column is editable.