How can I manually select photos in a gallery to send to a client?

At the moment if I want to send digitals to a person I need to use Favourites, then ‘Send to Client’. It would be really useful if I could make changes to the Favourites (sometimes clients ask me to chose) or to have my own method of ticking photos and sending them to clients straight from the Gallery? Kind of like ‘photographer’s Favourites’ :-)