Complete Newbie Wants to Maximize Use of LenovoECM NAS PX4-400d

Hello. I just acquired 2 new Lenovo NAS one os the IX4-300d and the other is the PX4-400d. I will like to know how to add the Channels service to these units.
Another question I have is, Can I add other Media Server App instead of using the one that came installed on this NAS?
Thanks in advance.

We don't have a package for Lenovo NAS. Does it have the ability to install other apps like Plex?

I've read that some people had success installing 3rd party apps but I do not know how.

If you find some links we can explore how to do it for Channels DVR

Here is one for the Lenovo Iomega IX4-300d