Navigation
Middle-drag → orbit · right-drag → pan · scroll → zoom.
Space or Alt + left-drag also orbits.
Arrow keys or WASD → pan (hold Shift for big steps).
Ctrl+scroll → resize brush · R reset view.
Tools
Region: click fills, drag draws a boundary.
Brush: drag paints every tri in the ring.
Detail: paints only triangles matching hit normal.
Wand: floods over smooth surfaces.
Mark area: mark triangles for scoped Simplify / Clean edges / Paint.
Crease: click a crease to mark the whole loop as a boundary.
Grow: click a painted face to expand its colour outward.
Preview: tag faces, tune sliders, then commit.
Plane / Direction: paint everything above a slice or facing one way.
Eyedrop (I): click a painted face to pick its colour.
P cycles tools · Shift+drag erases.
Project
Ctrl+S save · Ctrl+Shift+S save as.
Ctrl+Z undo · Ctrl+Y redo · Ctrl+H history.
Right-click on the mesh for region-scoped actions.