Controlling an army with a lot of units in the game "Starcraft," can become both time consuming and unwieldy. In order to better manage your troops, you can stack them. When you stack units and activate those stacks, you'll be able to control several units at once, rather than having to give each unit individual orders. This allows you to operate your army at a faster pace, providing you with a definite advantage over those who don't stack.
Instructions
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1
Load your game in Starcraft, or start a new game.
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2
Click and drag your cursor over the units you want to stack.
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3
Press the "Ctrl" key and a number key (1 to 9) simultaneously.
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4
Activate the stack by pressing whatever number key you assigned to the stack. For instance, if you assigned a "1" to the stack, all you need to do is press the "1" key and that stack will be activated.