Uncertain if this has been suggested before, but as the title states, we currently have two modes of breeding offers. Public to all, no wait, and private sent requests that depend on the recepient to see it and accept. But nothing inbetween those two. 

The suggestion is, a way to list males in a private offer that is only visable to the player/s written on the exception list. So they can, at any time, use the male for however many of their females without needing to send out requests each time and wait on the other player's timezone or schedule. This could be useful for joint breeding projects, or groups working together with thier animals for something specific and they wish to keep track of the offspring, rather than listing them publicly.

I would also like this as I have a set group of people that colaberate on breeding projects or designate stud males for the other members to use that we don't want to expend many breeding slots for publically.