Specifies whether the reference object will use the base object's Height and Width properties.
If this property is set to True, the reference object's Height and Width properties will be read-only, and will use the values assigned to the base object.
If the property is set to False, the reference object's Height and Width properties can be edited by the user.
This property applies to both grouped and ungrouped reference objects. If the reference object is grouped, the GroupHeight and GroupWidth properties apply.
All reference objects, except objects that are part of a grouped reference object, will have this property.