A property can have one of several special meanings in the run time context. These can be modeled by the "Special Property" attribute:
| Special Property | Description | 
|---|---|
| Element Type | Indicates whether the property value of this property contains a match name, see 
                           				  Element Type for more information. This information is used at run time when AWM has to create a new element. Tools have to provide the correct match name as an output parameter or AWM cannot associate the new element to its element type. | 
| Element Suffix | Indicates whether the property value of this property contains a file suffix. This information is used by edit/browse actions to be able to invoke the correct editor. | 
| Marker Line Number | Indicates whether the property value of this property contains a line number used to mark the line in an editor. This information is used if an edit or browse action is called in a tree table, which for example has been created by a search action. |