how can I add sub buttons so I can have much more spells on one hero? Example: you press one ability that's called for example "summons" and then you can do many spells. Im talking about like spell books but its ability instead of spell book.
Just because the Spellbook ability is innately an item ability does not mean that you can't modify it to contain whatever spells that you want, and put it on a unit or hero.
No, there is a spellbook ability that replaces your command interface in the bottom right with spells or any other ability of your choosing. When you exit that list, then it returns to show Attack and Hold Position and what-not.
