scmJS docs

Create Unit with Properties

As Create Unit, and the new units take the properties of one of the map's 64 unit properties slots: hit points, shields and energy as percentages, resources, hangar count, and states such as cloaked, burrowed, lifted or hallucinated. The slots are stored in the map's UPRP section; the editor's Triggers ▸ Unit Properties Slots edits them.

Action 11 · Create Unit with Properties(Player, Unit, Count, Location, Properties);

Argument Takes Stored in the action
Player a player or group bytes 16–19
Unit a unit type, or one of the unit classes bytes 24–25
Count a number of units, 1 to 255, or All (stored as 0) byte 27
Location a location (Anywhere is location 64) bytes 0–3
Properties a unit properties slot bytes 20–23
Create Unit with Properties("Player 8", "Zerg Hydralisk", 4, "Spawn", 1);