> ## Documentation Index > Fetch the complete documentation index at: https://docs.altoura.com/llms.txt > Use this file to discover all available pages before exploring further. # Viewport and Placement > Work directly in the 3D viewport to place, transform, and review objects. ## 3D Viewport The viewport is the main visual editing area. 3D viewport *3D viewport showing object selection, transform tools, and camera controls.* ### What You Can Do in the Viewport * Orbit, pan, and zoom the camera * Select objects * Deselect by clicking empty space * Open a context menu with object actions * Insert objects at the clicked location * Drag and drop GLB files for placement * Use transform gizmos ## Viewport Toolbar The top-left gizmo toolbar includes: * `Move (G)` * `Rotate (R)` * `Scale (T)` * `Universal (U)` * `Local` or `World` coordinate space selector ## Snap Toolbar The top-right snap toolbar lets users control transform snapping in the viewport. It includes: * A snap toggle button to turn grid snapping on or off * `Move` snap value in meters * `Rotate` snap value in degrees * `Scale` snap value as a numeric multiplier When snapping is enabled, transform gizmos step according to these values during move, rotate, and scale operations. ## Navigation HUD The bottom-right navigation HUD shows an axis widget that reflects the current camera orientation. Users can click the visible axis endpoints to jump the camera to aligned views along the X, Y, or Z directions. ## Camera Controls The source documentation lists these supported controls: * Mouse orbit controls for navigation * `W`, `A`, `S`, `D` to pan horizontally * `Q` and `E` to move down and up * `Shift` for faster movement * `Alt + Arrow Keys` to orbit when the canvas is focused * `F` to frame the selected object ## Drag-and-Drop Placement When a valid GLB is dragged over the viewer, the user sees: * `Drop here to place object`