how do you make a skill button that goes to another 12 panels or what's it called?

[mada_demigraph]

i've played many maps, and it's kinda common when a hero has a skill button, then when you click it, it goes to another 12 panels, or whatever it's called and contains learned skills. it's useful 'cause the hero can learn 12 skills at the same time then, but how do they do it? and can i also use it in items?

 

[Illidan_Hunter]

Let me understand:
You learn a ability or a non-hero ability. When you click it, it shows you another pannel where you can cast other spell?

Well, if that is what you mean, simply use the "Spell Book" item ability and change it's name and icon.

Hopely, this helped.
Illidan_Hunter

 

[Kercyn]

T_T

Here you go.