customizing Sentiment anlaysis in SAP Expert Analytics

Hi,

I am trying to find out, if there is some way to customize out of box sentiment analysis component present in SAP Expert Analytics. Basically, I want to custom assign some sentiment to certain tokens. I know it is possible in SAP HANA using custom dictionary configurations but I am not sure, if I can achieve that through SAP Expert analytics. Does any one have an idea?

Thanks

Rajiv kumar