Throw Pila More Than Once

[Poleaxe]

Is there a way to make legionaries throw their pila more than once? Especially in BI I would like to see my Plumbatarii shower the enemy with darts instead of one throw and charging.

[Charge]

Use fire at will option; + when you right-click enemy unit, hit backspace - isn't guaranteed they will continue throwing at that unit, but at somebody for sure..

[Hound of Ulster]

The Roman legionary units are programmed to fire one 'round' of pila and then charge with thier gladius, but if you turn on fire at will, especially against the Gauls and Germans, they will stand and 'volley' fire until the opposition line breaks.

[polluxlm]

Or if you want more control/don't want to spend all your pilas at once, you press 'stop orders' then press attack again.