Could you please explain what you would like to do? I’m not sure if have really understood what you are trying to do when loading a kit without patterns. If you just want to use the sounds of the second Agent without the patterns you can just switch to MIDI channel 2 and play the sounds or program your own patterns.
There are INIT presets for the kits of the Acoustic and Percussion Agents. These kits have neutral mixer setting and no patterns. Just search for INIT in the Groove Agent 4 MediaBay.