=== Create a map overlay document ===
The following steps are required to create a Map Overlay Document: <br/>
#It is recommended to derive a new [[MetaClass]] from '''[[SYSCLS FILEDOCUMENT | Filedocument]]''' in from the ''Custom.Document'' Namespace.
#Add the classification [[SYSCLS_MAPOVERLAY | MapOverlays]] to the new MetaClass using the [[Relation_Editor | Relation Editor]].
#Prepare the required MetaProperties for the '''[[SYSCLS_MAPOVERLAY | MapOverlays]]''' classification.