There are several ways you could do this.  The most obvious is to create two seperate modules for each control.  Or you could use a multiview control to switch between the two and then create something in settings to decide which will be displayed.  Probably easier and less work to just create two seperate modules though. 

    <asp:MultiView ID="MultiView1" runat="server" ActiveViewIndex="0">
        <asp:View runat="Server" ID="view0">
            [school control]            
        </asp:View>
        <asp:View runat="server" ID="view1">
            [agenda control]
        </asp:View>
    </asp:MultiView>

 Then in settings make a drop downlist that will set the MultiView.ActiveViewIndex = 0 or 1 in settings.

Or just make each individual control invisible.  Like i said lots of ways to do this.  If the two controls don't 'interact' in any way i'd just create two modules