1. Create a global variable with a timer where the triggers are listed.
2. Create that trigger that sets the timer and creates a timer window and makes it visible for all players.
3. Create a trigger that triggers, whenever the timer runs out and then spawn stuff.
In SC2, you can have multiple timers and you can move the timer UI around. That's the main difference to SCBW in this case where you only had 1 timer with its UI visible for all players on 1 specific spot on the screen.
1. Create a global variable with a timer where the triggers are listed.
2. Create that trigger that sets the timer and creates a timer window and makes it visible for all players.
3. Create a trigger that triggers, whenever the timer runs out and then spawn stuff.
In SC2, you can have multiple timers and you can move the timer UI around. That's the main difference to SCBW in this case where you only had 1 timer with its UI visible for all players on 1 specific spot on the screen.