What is the optimal way to achieve this functionality? The room has an east facing wall of windows - an 8 ft fixed panel with a pair of 22" casements on each side. I realize I could have three shade sets - one for the big window and one for each casement pair. Each shade set would consist of a solar shade (3% transmission) and a blackout shade. I was planning on mounting the solar shade next to the glazing with the blackout shade further into the room. Is there a valence that allows both mechanisms to be hidden in one box? How much space does each mechanism require?