janekathleenhinckley wrote:When I schedule events on the calendar, the only option I can select is the entire ward,
Clearly you are attempting to create a calendar. As jdlessley indicates, the first step would be to make sure nothing already exists.
Note that the calendar has no concept of organization. It only knows "ward" and "stake". It's up to each individual to subscribe or not subscribe to the calendar. If you name the calendar something like "Relief Society Activities", then presumably the sisters will know to subcribe and the single brothers will know to unsubscribe (unless you start feeding them leftovers).