[Trigger] Need some help with this trigger iea

[King Katanova]

Basically i cant give you the name of what im stuck on because if i did know its name i wouldnt have to ask fr help.

heres what im trying to do
"1 unit will have a spell that when activated a box will appear in center of screen for that player, he can then choice between 13 units on that box, when he selects on of the tabs that unit who has the spell will change into the unit he choice on the box. that unit will also have the spell and vise versa".

what im struggling about is the trigger that produces that said box in the centre of the screen. anyone help me out please? basicall some kind of "choice tab"

 

[Cataract92]

Do you mean something like a Dialog?

Here is a good Tutorial for Dialogs in Gui.

Just show the Dialog when your ability is being casted.

 

[King Katanova]

cheers