Quick answers
How do I edit a build in Fortnite on PC?
Look at a piece you built and press G, then click the tiles you want removed and press G again (or confirm with the mouse) to apply. Reset a selection with Mouse 2.
What is the sprint key in Fortnite?
Left Shift while moving. Auto-run (=) keeps you running without holding anything, which most players prefer on keyboard.
How do I switch building materials?
With a piece selected in Build mode, press Mouse 2 to cycle wood, stone and metal. Each material has its own inventory count shown above the piece.
Which controller layout should I use?
Builder Pro is the default and the fastest for building because every piece is one shoulder or trigger press. Combat Pro moves pieces to the D-pad and suits players who never build.
How do I ping in Fortnite?
Tap Left Alt to place a marker where you are looking; hold it for the wheel with enemy, loot and danger pings. On controller press D-pad Left.