If you want to set up separate outs using AD2 in Ableton Live. Here are some steps to follow.
Open up an instance of AD2 onto a MIDI track in Live and then go to the Kit Page in AD2. Next click on the small arrow next to each kit piece or track in AD2 that you want a Separate Output for. Then create the same number of audio tracks as you need for each Separate Output.
On each new Audio Track that you created in Live you will need to assign the kit piece/channel from AD2 to it. On each track in Live go to where it says Audio From and then in the drop down menu just below it select Addictive Drums 2. In the next drop down select the kit piece, Kick for example. You have now routed sound from AD2 for the kick drum to the first audio channel you created in Live. Do the same for each channel you want as a separate out.
Then play a beat in AD2 and set the monitor to In on the various audio tracks in Live to check everything is working as you want. You should see the various corresponding levels in Live move as the kit pieces/channels in AD2.
Here is a video on how to do this in Ableton Live 9: