I used to be an ePO admin many years ago and found the best way to learn was building a clone on a virtual pc to play with. Once you get your head around policies (update schedules, scanning schedules, file / folder exclusions etc) its not that complicated mate. Tbh my recommendation would be to look at an alternative solution. I got my company a good deal with kaspersky and have never looked back.
If you need any advice, feel free to pm me as I've been working in the IT Security Industry for around 8 years now and am currently Information Security Manager for a large corporation, with AV just one of the things under my remit.