Hello Dan, welcome to the site
You can add the median line in the "Levels" tab of the indicator's option as shown below. For this setup, add a level of "1".
In a bid to avoid mass leeching, we do not encourage downloading files or indicators from a specific member or coder here. Pack downloads have been purposely disabled as it defeats the purpose of a participating forum (which is what we encourage here).
To narrow things down a bit, you may browse all the files and attachments here by using our: Attachments Database or our Daily Download thread.