Ability Customization

Ability Customization

I am trying to figure out how to make a multiple arrow ability like the dryad has on xhero siege. Can anyone help me to figure out how to do it?

I havn't played that map but I think I know what you mean.
Edit the 'Barrage' ability, remove the requirments and change the targets so it can hit ground units.
And that should be it