Assigning Cubase' Quickcontrols to the Alphatrack

Hi Guys,

i wanna easily access parameters of my VSTis on my Alphatrack. A good way in Cubase would be with the internal Quick Controls.

How can i assign the Cubase' Quick Controls (e.g. Quick Control 1, Quick Control 2, Quick Control 3) to the 3 control-endless-knobs ?

Thanks in advance for any Help.
stone_d