Users can randomize the agent types distribution of the group agents with the Agent Randomizer Tool.
The tool is accesible via the Atoms Menu: Atoms > Tools > Agent Randomizer.
Alternatively you can access it with the shelf button 
Select your agent groups in scenes.
Select the agent types you want to apply to your agent group, then press the arrow button to move the agent types to the right list.
You can adjust the sliders to randomize the agent type distribution.
By enabling the "Enable distance" option, you can tell Atoms to avoid applying the same agent type within a certain distance. This only works if you have enough agent types available.
Activate the "On selected agents only" if you wish to run the randomizer only on the selected agents.
Once you are happy with your selection, click on the "Run" button.
Click Rewind to reset your simulation and see the new agent distribution.
