Install the floating license
From the Utilities menu, select Option Installation.
Overview. Use Option Installation to enable upgrades that you have purchased for your instrument from Tektronix. For the most
current list of upgrades, go to www.tektronix.com or contact your local Tektronix representative.
Utilities  
566  DPO70000SX, MSO/DPO70000DX, MSO/DPO70000C, DPO7000C, and MSO/DPO5000B Series