adding new or changing character abilities

I was wondering if it was possible to add new character abilities or change them like give the character the ability fire a missile or preform a melee attack like a punch or a sword swing (I know these sound pretty weird but I have some ideas for characters but I would need to be able to add new abilities for them to be like how I want them to be.)

You can change the object spawned by thokking and spinning, and then use SOC to make your own effect using that object.