Create a new ability for Multiple Shot
-In the object editor, make a new custom ability based on the unit ability Barrage.
If you would like a hero skill with levels:
-Change the field that says: "Is hero ability" to true.
-Save and restart the editor so it can categorize it properly, and so it shows 'art-icon-research'.
Now lets change Barriage so it works with our unit.
-Make area of effect the same as your units range, so the multiple shot doesn't shoot farther.
-Change the missile speed and missle arc to the same values as your unit.
-Set the desired ammount of damage.
-Remove any techtree requirements used for the ability.
Last, we calculate the number of targets we want.
-Unit already gets 1 for normal attacks.
-Unit already gets 1 for having barriage.
-Unit already gets 1 for the number of targets.
-If you change number of targets to 0, the unit gets a LOT of attacks.
Is this so hard for you to understand?