Ivan, thank you for taking the time to respond to my question. However, I did find a solution to my problem that appears to be working quite well.
I used the following code in the display file (.aspx) and inserted it between the "inner MultiPage" and the end of the corresponding "outer PageView" (I hope that adequately explains)...
</telerik:RadPageView> </telerik:RadMultiPage> <br/> <asp:ButtonID="Button1"runat="server"Text="This is a button between the end of RadMultiPage2 and the end of the first RadPageView"/> <br/><br/> More basic data at the bottom of the data entry multipage <br/><br/></telerik:RadPageView><telerik:RadPageViewrunat="server"ID="RadPageView7">