[omertu]

So, I've found some project to be able to "activate" and put on standby the CEC but it looks like it no longer works with Kodi 17. Any way to somehow integrate this to this current project? Here's the link og the github project: https://github.com/joshjowen/script.json-cec

thanks again for the hard work of you 2, much appreciated.

That's a great find, thanks!
I've added this and it worked for me (see the github project for details),
It looks like it only works on Kodi 17 and above.