How to ...

• Edit colors
• Work with virtual tree
• Work with browser
• Work with primitives
• Use CSG wizard
• Test game
• Easily select entities
• Edit entity properties
• Work with lights
• Create backgrounds
• Use cloning
• Create moving brushes
• Add sound and music
• Copy sectors
• Edit sector properties
• Add fog or haze
• Change gravity
• Group and select polygons
• Edit polygon properties
• Use texture layers
• Create sliding polygons
• Create scrolling texture
• Apply projected mapping
• Create translucent polygons
• Create mirror
• Create warp