Adding new tab to existing dockspace

[sfh074]

I am new to Krypton so please forgive me if I don't use the proper terminology, but I will try my best. While working with the "Standard Docking" example code, when it is initially run the layout is >> 2 document pages in the center, a dockspace with 2 pages (2 tabs) on the top right, and a dockspace with 2 tabs across the bottom. Now here is my question: How can I add a new page (an additional tab) to either the dockspace on the right or the bottom? I can easily add a new document page to the center but have yet to find a way to add a page to an existing dockspace. For giggles, can anyone using the "Standard Docking" example code add a "Input 7" tab to the bottom dockspace when clicking a new button that is added to the Ribbon. If you can include a code snippet would be most appreciated.