Reveal whole map in the beginning of the game

[TheDarkBoy]

Hi, as the title says, i need to get the whole map revealed at the start of the game. I have tried to make a unit with an ability that reveals the whole map, but i cant seem to find an action that makes an unit use an ability. Also i have tried to find a trigger that reveals whole map, but i also cant seem to find it. If anyone got an idea (trigger preferred) then please tell me .
Thanks alot to all of you.

 

[rDs_RaVeN]

event
    time - time elapsed is 5 second
condition
actions
    visibility - remove black mask
    visibility - remove fog of war

 

[Techide]

If for only a particular player (player 1 in this case)

Trigger editor: New Action: Visibility - Create Visibility Modifier -> Visibility - Create an initially Enabled visibility modifier for Player 1 (Red) emitting Visibility across (Playable map area)

 

[TheDarkBoy]

Thanks alot