Alert Recall SPACE If you get an alert, such as "base is under attack" or "structure complete," press the SPACE bar to quickly move the camera to highlight the event.
Select All Like Units Double-Click Double-click a unit to select all nearby units of the same type. Example: Double-click an SCV unit to automatically select all SCVs in the area.
Bind Group to Number CTRL + [#] Using CTRL + [#] binds all selected units to the number you press, overwriting any existing binding settings to that number.
Add to Binded Group SHIFT + [#] Using SHIFT + [#] adds selected units to an already-binded group.
Recall Binded Group [#] Simply press the number key that you've binded units to in order to automatically select those units.
Camera to Binded Group [#] x2 Double-tap a number key to relocate the camera to the associated numbered group. - Matt
Idle Worker F1 Automatically selects an SCV unit that is doing nothing. Good for finding an SCV to repair a building or machine unit, or to simply make sure no one is being lazy.
Cycle Between Subgroups TAB / SHIFT + TAB If you have a group of mixed units selected, pressing TAB cycles between sub-groups that are automatically determined by similar unit types. Want to command all marines in your large group to use stimpacks? Press TAB to select the marines within the group.
Town Camera BACKSPACE Tapping the BACKSPACE key quickly moves your camera back to your home command center.
Command Hotkey Use
Attack A With a unit selected, pressing the A key allows you to issue an attack command by left-clicking on an area/object. This is important.
Patrol P With a unit selected, press the P key and you can assign a patrol path by left-clicking a destination.
Command Hotkey Use
Build Supply Depot B, S With an SCV selected, tap B to access the build menu and then tap S to build a supply depot with your next left-click. This is key for quickly building supply depots on demand.
Build Refinery B, R With an SCV selected, tap B to access the build menu and then tap R to build a refinery with your next left-click. You'll usually do this quickly at the start of each mission.
Build Bunker B, U With an SCV selected, tap B to access the build menu and then tap U to build a bunker with your next left-click.
Build Barracks B, B With an SCV selected, tap B to access the build menu and then tap B to build new barracks with your next left-click.