this is the arrangement on Seasmith.
The shades are mounted on the sides of the boom using an extruded aluminium track. When not in use are rolled up and secured with bungy straps. Very simple to unroll, bungy to lifeline and zip to the Bimini. pic shows port shade in use and zipped to Bimini and stb shade stored on boom. To rig or store shades takes less than 1 minute.