Hi Syed Danish,
I am not sure that I understand your scenario correctly. Can you please elaborate on what you mean by "expanded"?
If you want to select more than one item, I am afraid that this is not possible, since the control allows only one item to be selected at a time.
If you need to display all your items as active thus having nothing in the minimized area, then you need to make sure that there is enough available space for the control to display all its items. If there isn't enough space, the items that cannot be displayed are automatically moved to the minimized area. You can find more information about the RadOutlookControl in our online documentation.
However, if your scenario requires a control that allows multiple expanded items, you might consider using the RadPanelBar
Please let us know if we can further assist you.
the Telerik team
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