Custom Hero Ability Chooser + item combine

[Eragon956]

Okay so i'm really interested in making a spinoff of Custom Hero Arena but i have no clue on how to do two things.

1) Create a tavern of abilities to select from i.e - HOSK / CHA
2) Create combinable items i.e - Dota

Any help is very appreciated.

NOTE: i have searched the forums for both of these to no avail

 

[b_a_d]

heres how to combine items.

i dont see one for a tavern on ability theres one for heros

 

[Day-Elven]

I think that combines item is the shop that sells the spellbook based items.

Smth like
____________________________________________________
Generic unit event - Unit Aquires item

If item being manipulated =skill

Set Ability=UnitAbility[a]
set a+1
____________________________________________________

Then, you give 4 "empty hero abilitie to unit, and when he learn an ability, you just change it with "UnitAbility[*]"