Emailing subset of announce list

Hi - we have a support issue that is impacting a subset of our announcement list and I’d like to email this group with the details to fix rather than send to everyone.

I wasn’t able to determine how to do this via the wiki. Does anyone know if this is possible ?

I’m trying to handle this out of the existing list so the subset won’t have to confirm subscription to an entirely new list

Thanks for your help !