- Key
- Keynote Legend
- Label Legend
- Label Legend Container
- Label Legend Manager
- Layer Plane
- Light Info Record
- Light Info Record M
- Light Measurements
- Light Object
- Light tool
- Lighting Device Accessory
- Lighting Accessory
- Lighting Accessory Symbol
- Lighting Accessory Tool
- Lighting Device
- Lighting Device Parameters
- Lighting Device Tool
- Lighting Footprint
- Lighting Information M
- Lighting Instrument
- Lighting Instrument Symbol
- Lighting Inventory Setup Command
- Lighting Pipe Ladder Tool
- Lighting Pipe Object
- Lighting Pipe Tool
- Lighting Selection Commands
- Lighting System
- Lightning Tapes
- Lightwright
- Limit Shaded Render mode to 8 lights
- Line Type Resource
- Linked Label Objects
- List Browser Format
- Lit fog
- Load Category
- Locate in Resource Manager
- Locate Label Legend in Resource Manager
- Locate Symbol in Resource Manager
- Locus
- Loft Surface Tool
- Magnetic Declination
- Magnets
- Manage Loads Tool
- Markers & Arrows
- Marquee
- Master Snap
- Materials Resource
- Max Reflections
- Menu Bar
- Merge Record Formats Command
- Mil
- Mirror Tool
- Mode Group
- Modifier Key
- Modify by Record Command
- Move By Points
- Move Page Tool
- Multi-Circuit Instrument
- Multiple View Panes
- Navigation Palette
- New ... from Locally Mapped Command.
- Non-Breaking Space
- None Class
- Numeric Value
- NURBS Curve
- Object attribute
- Object Context Menu
- Object Context Menu Command
- Object Information Palette
- Object Information Palette Tabs
- Object Level Visibility
- Object Name Class
- Oblique Projection
- Occluded Geometry
- Opacity
- Operator
- Option Key(Mac)/Control Key(PC)
- ⌥/ctrl
- Orbit tool
- Organization Command
- Origin Marker
- Orthographic Projection
- Orthogonal
- Out-Of-Date Border
- Page-Based Unit
- Page Boundary
- Page Setup
- Palette
- Pan Tool
- Parametric
- Parametric Constraint Indicators
- Parasolid
- Parse
- Path
- Perimeter
- Perspective Projection
- Plan Projection
- Planar
- Planar Shape Tool