ZCS 5.0.1

Have set up a Shared Calendar with a user account just for that calendar. Have setup that Shared Calendar in my users. Question is is there any way in Web Client to set it so that a new appointment automatically gets set to the Shared calendar instead of the Personal Calendar? Idea here is that ideally only one calendar would show up in their client and that calendar would be the shared Office Calendar that every one has full rights to.
Thanks!

John H