[help]make a skill a aoe

i been wondering since ive never done it before how to make a skill that is a aoe not one

any ideas

yes i have done it, i did it with crowwings.
1,NO_CANCEL,255,55,1000,0,0,0,3000001,45,0,750,0,0 ,0,0,0,0,0,1,CROSS_BOW
2,NO_CANCEL,255,56,600,0,0,0,3000001,45,0,750,0,0, 0,0,0,0,0,2,
3,NO_CANCEL,255,57,1000,0,0,0,3000001,45,0,844,0,0 ,0,0,0,0,0,3,
4,NO_CANCEL,255,58,900,0,0,0,3000001,46,0,2079,0,0 ,0,0,0,0,0,4,
change the first 3 lines where it says 45 to 46, and all the hits will now be aoe.. :)