Dynamic Recipients Coming Soon
A new mechanism for selecting dynamic recipients is on the way!
Meanwhile, there are several new recipient types for sending messages to pre-selected Users.
Removed From Beta
The original public beta (v0) allowed for a "custom selection" of recipients, a feature very similar to the upcoming Dynamic Recipients.
It was removed, however, because the underlying mechanism for selecting dynamic recipients will soon be changing significantly, and the original field value can't be ported into the new field.