The described functionality is not supported by the TabStrip. Due to how the TabStrip and the MultiPage are rendered the TabStrip cannot be split into sections and content placed in between those sections. You could consider using multiple TabStrip controls instead of splitting a single TabStrip.
As for hiding a Tab and selecting a different one, this can be achieved with the RadTab Object's set_visible(false)
client-side methods. These and other important methods of the RadTab object are listed in the following
documentation article. The RadTabStrip object itself has a similar set_visible() method, which can be used to hide/show the entire TabStrip not just particular Tabs.
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