Players stand in pairs on each side of the court. The player at the front sets the ball backwards to their teammate and makes a spin so that they are now facing their teammate, who then sets the ball back to the player facing them. This player now sets the ball backwards across the court to the other pair, who do the same thing.
Match situations require players to change their setting patterns, so sometimes players will be required to set backwards instead of the usual forwards.
New hitters rarely miss because of their arm. They miss because of their feet. Build a reliable approach, then time it with your setter.
When your hitter gets stuffed, five teammates standing and watching is how you lose the point. Good attack coverage turns a blocked ball into a second swing.
Coaches spend hours correcting arms in serve receive when the real fault is almost always the feet. Fix the movement and the platform fixes itself.