If this is the rig stand you're using, it's easy to set up for a laptop.
A small shelf made of 1/2-inch plywood and sprayed flat black can be sat on the second tier. Because the tiers are adjustable to nearly any position, you can place it directly over the center of the keyboard and somewhat to the rear, making it easy to see, but not blocking your eye contact with the audience.
Gary
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)