Application Studio -> Players List Question: How to create a 4th type?

In the Application Studio players list section, you can choose from one of three types of player types to build your player. Is there a way to create a fourth (or fifth or sixth...)? We need a player that holds a short playlist underneath the video window. Ideally, the playlist would be hidden as we just want it to cycle through videos automatically. I do know, however, you have choices in the Content -> Playlist -> Preview & Embed area for the given item. The problem is we want to run ads and you can't setup ad info (as far as I can tell) in those choices. Something like a Playlist, no-list, light is what we are looking for.
Further info: We pay for the hosting service at kaltura.com and use that KMC (as opposed to running our own server. I'm hoping i'm posting in the correct place.)

Any help would be greatly appreciated.

Thanks in advance,
Keith