Loading Data
                                                    This section contains the following topics:
- Assembling a map base
 - Starting a new session
 - Selecting the Coordinate Reference System
 - Loading maps (and other data files)
 - Cursor Datasets
 - Index Datasets
 - Ordnance Survey GB overlays (GB specific)
 - OS MasterMap Topography Schema 9
 - Blending OS MasterMap with OS Street View
 - OS Open Code Point
 - DXF data
 - Index Dataset Naming Conventions
 - Cadcorp Data Service