Is it legal when placing match loads into a robot, for the match load objects to extend a chute to hold them. The force to extend the chute would be due to coach pushing a lower object so that the higher object imparts the force to the extendable chute? The coach does not directly manipulate the chute.
No, this would not be legal. You are not allowed to manipulate your robot during the process of match loading, neither directly or indirectly.