Unit Trigger plz help

Unit Trigger plz help

Plz help me with this


Can you do so it always 5 units in a region?
when one unit dies a new unit will come so it always 5 units in that region. not more or less

Events
Time - Every 2.00 seconds of game time

Conditions
(Number of units in (Units in (NameOfRegion))) Less than 5

Actions
Unit - Create 1 UnitType for Player 1 (Red) at (Center of (NameOfRegion)) facing Default building facing (270.0) degrees

Thx alot