(Request) An Trigger Help

I need some kind of trigger that works as a build button like in the map Rural Zombie Onslaught. How can i make a trigger like that work?(please dont say jass! but can if you want lol.)

what you mean with a build-trigger? do you need an ability that builds structures?

Yeah. Like When you get an ability, and you click it, it shows a unit or building that can be built. Then the next time you can get it again, another icon appears, etc etc

there are item-abilities where you can base your custom ability off. must be somewhere at special/Items/... or something... but

Then the next time you can get it again, another icon appears, etc etc

what u mean with that?

I did that before but it didn't work. Hey, Can the "Build" button has more than one level? Cause im starting to think that the build buttons the worker units have are some how.... hmmm what was the word again... Ah i remember! Like the ability build button is level one (just got it) and then the next time you get it again you get +1 unit/building to make. Hmm... Check if thats possible.... i feel like im getting on to something.... or not.

well maybe post the map so we understand and tell what ability/item/whatever and we can might have a look. andway the rural is fun but i tested it 1 second only though.

well, i doubt that you can do it that way... at least i havent heard about something yet...

but anyway, just add all buildings you want to be buildable and make some of them require a building or an upgrade researched. thats the same in the end...