Can some one help me plz

Can some one help me plz

Hi im trying to make a AOS in warcraft ftf. I dont know what trigger is the one used to make the units keep spawning over and over like in normal aos.Can some one tell me how to do that or what triggers i need thx.

Event- periodic event (every ??? seconds)

Action- if/then/else
If (unit spawning/producing structure is alive)=true, create (units) at postion of said structure
units- issue order targeting a point- pick every unit in region (around the structure) matching condition (i.e. belong to player, is not a hero, ect) and order picked units in said region to attack-move to a region in the enemy base

Repeat action for every structure that you have where you want units to spawn from.
-VGsatomi

Yes thats it .. is not very hard

VGsatomi thx youve been good help