I don't understand what you are saying but I think you want to know how to create units.
| Trigger |
| Description: |
| Units |
|
| Players: |
| ¤ Player X |
| Conditions: |
| ¤ Anything |
| Actions: |
| ¤ Create 1 unit at locationX for player X |
It's quite simple, you just have to use the action that says Create Unit or Create Unit At and then fill in the blanks in the trigger with the unit name, location, number of units to create, for what player.