I don't understand you question. Just add more to him and he will use them, you might have to mess around w/the button placement, but a normal unit will hold 7 abilites, and a normal hero will hold 6.
Here are the button positions in case you didn't know
Code:
_______
0 -- |_|_|_|_|
1 -- |_|_|_|_|
2 -- |_|_|_|_|
^ ^ ^ ^
0 1 2 3
I had to put it in code so it wouldn't ignore whitespace
