The 6 kits sounds great - but I thought there were also a bunch of pre-sets for these kits?
Is there a folder destination I am not seeing?
 

I click on the icon on the top right hand corner labeled "BEATS." Then if you click on the tab labeled "All categories," you get a list of genre choices that will open up pre-sets. Hope that helps...!
 

I think he wants to know how to change the kit presets without loading a beat. In AK you simply click on the window that says startup in your pic there. That brings up presets for all the keyboards in AK. Not sure in AD. Sorry. Looking forward to upgrading in a week or two to X3.

I gotta question about what is included in AD with X3 before I upgrade as I already have the basic AD.
To answer op's question.
You click on startup button to select available kits. Should be 4 basic kits in clean plus any factory tweaks of those kits.
Below the AD icon you have libraries. Hit the refresh button when you install any expansion paks or user beats store. More free samples  are available at AD website and also Groove Monkey. Or you can purchase midi paks and kit paks that you'd like. You can make your own too via midi editing or edrum triggering.
If you click All categories you'll see the midi patterns Time sig,bars and bpm if selected.
Click on a pattern and press play.
Drag and drop pattern into sonar AD midi track