What's a good command for "Spamming a button"?

[Rabano]

Im editing a char of Dee Jay and Im having problems with his Machinegun Upper, the idea is that he changes his animation if you spam a punch button.

What is a good command to make that happen?

[Odb718]

Something like this?

[Command]
name = "lightningkick_a"
command = a, a, a
time = 17

For a changeanim just check to see if that != playing, then check the command