Canvas Area (Center) The main workspace where you can visually edit your design. 2D View: Edit shapes, holes, and cutouts directly on a selected side. 3D View: Rotate and inspect the overall box using the mouse. Mouse Controls: Left click: Select or move a component. Scroll wheel: Zoom in/out. Middle mouse click and hold: Pan view (2D), Move camera position (3D). Right click + drag (3D only): Orbit around the box. Keyboard Shortcuts: Action Shortcut Open Existing JSON Ctrl + O Export JSON to Your Computer Ctrl + S Undo / Redo Ctrl + Z /  Ctrl + Shift + Z or  Ctrl + Y Add Rectangle Shift + R Add Circle Shift + C Duplicate Selected Component Ctrl + D Rotate Selected Component R Move Selected Component Arrow Keys Delete Selected Component Delete Toggle 2D / 3D View T Open Help F1