Delete duplicates within one group only (EndNote Web)

Hello,

Does anyone know if it is possible to detect and delete duplicate references within one group only? I’m using EndNote Web.

I have searches from a number of different databases and would like to (at least initially) keep them separate.

But I can’t figure out a way to delete my duplicates in my PsycInfo search for example, without it removing them from the whole reference set.

Many thanks in advance,

P