[MikeKL]

I was going to ask similar question about only for Windows (as your referring to webgrab Windows install) but assume underlying configurator could be used to configure from within kodi the libre webgrabplus addon?

---edit---OK loaded addon from your repo and can see will be able to test configurator and see whats built/prepared within its own "script.webgrab" folders i.e.

.kodi\userdata\addon_data\script.webgrab
.kodi\addons\script.webgrab

LibreELEC Webgrabplus creates and utilises following folders

.kodi\userdata\addon_data\service.webgrabplus
.kodi\addons\service.webgrabplus

--edit---OK building my prefered channel list using configurator