An extended property definition mainly consists of the following attributes:
- Variable - the name of the extended property in the format it is accessed from RED and included into scripts.
- Scope - the scope is a sub-set definition of an extended property variable which specifies the subset of database types and objects that will have access to the variable.
The user defined extended properties can be created and managed, using the Extended Properties facility which is launched from the Tools menu. 
The following options are available:
- Maintain Extended Properties is used to add new or edit existing extended property definition settings.
- Load Extended Properties is used to load a set of extended property definitions into RED from an external source. This option is typically used with a WhereScape provided enablement pack.
- Export Extended Properties is used to export the available extended properties to an external properties file (.extprop).