That's been done before. No ailerons of course, in favor of changing the panel AOA independently. The forces involved are considerable so it has not caught on. With today's servos it may be worth revisiting but maybe not for larger models.

The pivot tube (wing tube) would need to be moved from its typical position around the CG to the more aerodynamically practical AC (25%MAC by convention). It would take considerable amount of mass to statically balance each panel so beware. The result would be a heavier model (by quite a bit)