categrial model using R Deep Neural net

Hello!

I generated several DNN model using the "learn R deep Neural net model" component and they worked fine.

I am interested in generating some Categorical DNN models but with more than two categories ( instead of active vs actives as example shows),  would very much appreciate your help  on this.  ( did not find the option for number of category, also, should I pre-define/separate each sets or are there any way to automatically separate them based certain property ( e.g. IC50)?
Many thanks!

--Wei