justaplayer
Banned
WPA Regulations:
4.2 Removing of the Ball Rack Template
After the break, the Ball Rack Template must be removed by the referee from the table as soon as possible without disturbing any of the balls. If a referee is not present and there are balls obstructing the removal of the Ball Rack Template, the opponent must be the one to remove the Ball Rack Template. If there are no obstructions, the player at the table may remove the Ball Rack Template without the opponent interfering.
With or without a referee present, the Ball Rack Template can only be removed if not more than 2 balls are an obstruction in its removal. Exception to this rule applies if 1 or more balls are frozen and obstructing the removal, in this case the Ball Rack Template stays in place until such time that the frozen balls are no longer an obstacle in the removal of the Ball Rack Template.
With the removal of the Ball Rack Template, the referee or opponent may use markers in the form of ball markers or chalk blocks which are at their disposal to mark the obstructing balls. The Ball Rack Template must be placed in its required spot away from the playing area including the rails and the balls placed back into their original position.
End of story
The pros and everybody continually disregard these rules in tournament play and action. As others have said, the cardinal rule is to stay in your seat when it's not your turn to shoot.