I am sorry for delay in responding, I had to take a break.
The patch request can be now enetered only by editing the preset file directly. But in order to have the parameters updated, number of parsing rules must be typed in too. These can be very complex. There is a tutorial at Parsing SysEx messages | Electra One Documentation.
@tomas is preparing a visual editor for this. Unless you are comfortable with editing the JSON files I would suggest to wait for the graphical editor.