"Make Item" Trigger Skill

[indomitable1319]

This is about the Object Editor+Trigger Editor.
Now, in this game I've played, Scrub Troll Tribes Alpha 7&9, there's a Make Item skill. Like in Island Troll Tribes. How do you make the triggers like that so it will make the item?
Like:
Slot One: Rock
Slow Two: Stick
Equals Club

Press the Make Item button to make it. What is the suggested skill? And what will be the trigger? Sort of like an event like: Hero Uses Skill

[EDIT]
Also, a trigger that when specific items of a type are in a structure that WILL BE BUILT makes an item. Like:
I made a structure called HOUSE
The HOUSE can make something called STICK
I need to put a log into the house then use a make item skill
How do you do that trigger?
A structure that must be made by a unit has a trigger that the structure itself can make items. Since the structure WILL BE made, I can't make a trigger for it.
[EDIT]
I just edited it..
Don't scratch that.. I can't find the trigger to make it like that.

 

[Pharaoh_]

Base the Make Item skill off Channel. Then,

• Trigger
• Events
  • Unit - A unit starts the effect of an ability
• Conditions
  • (Ability being cast) Equal to Make Item
• Actions
  • If (All conditions are true) then do (Actions) else do (Actions)
    • If - Conditions
      • ((Triggering unit) has an item of type Rock) Equal to True //Boolean comparison
      • ((Triggering unit) has an item of type Stick) Equal to True //Boolean comparison
    • Then - Actions
      • Item - Remove (Item carried by (Triggering unit) of type Rock)
      • Item - Remove (Item carried by (Triggering unit) of type Stick)
      • Hero - Create Club and give it to (Triggering unit)
    • Else - Actions
      • Game - Display to (Player Group(Owner of (Triggering unit))) the text "You do not have enough items to proceed"

For the "will be made" part, or "post-placed" units, use this:

• Trigger
• Events
  • Unit - A unit finishes construction
• Conditions
  • (Unit-type of (Triggering unit)) Equal to House
• Actions
  • Unit Group - Add (Triggering unit) to Group

• Trigger2
• Events
  • Unit - A unit dies
• Conditions
  • ((Triggering unit) is in Group) Equal to True //Boolean Comparison
• Actions
  • Unit Group - Remove (Triggering unit) from Group

Now, whenever you want to refer to your building:

• Actions
• Unit Group - Pick every unit in Group and do (Actions)
  • Loop - Actions
    • Unit - Set life of (Picked unit) to 20.00 //Example action

 

[indomitable1319]

Thanks, I'm planning to make a game like this after I finish Arthas' Journey. I'll keep all you taught me in mind. Thanks.