# Stacker Tool ### **How to Use** The Stacker tool lets you quickly duplicate a prop in a straight line, stacking copies along the direction you choose. It's a huge time-saver when building walls, floors, pillars, or anything else that needs lots of identical props lined up neatly. Hold **Q**, select the **Stacker** tool from the list on the right, then aim at the prop you want to copy. Use the tool's options to set the **count** (how many copies), the **direction** to stack in, and any **offset** or **rotation** you need. **Left click** the prop to stack the copies. Because the stacked props line up perfectly, the Stacker tool gives a much cleaner result than placing each prop by hand.