Please stop editing your post so many times. If you want to amend it add an “update: …” or “edit: …” to the end. Otherwise a lot of confusion will ensue.
As far as I understand currently you are running it from console. You don’t have to, since KiCad v5.1 this plugin works from GUI on latest Linux distributions.
If you do prefer to run from console you can pull up configuration dialog anyway by passing
--show-dialog flag to the script in addition to the pcb file path.
You should read the wiki it has some good information on installation and usage.