When you select a reference object and open the Property Panel, there will be fewer properties shown than there are for its base object. Only the object's common properties, and a State property, if the object has states, will appear in the property panel. If you change these values on the base object, the value of the reference object will not be changed.
All the properties that the base object has but are not visible in the Property Panel for the reference object, are properties that receive their values from the base object.
The reference object also has several properties that the base object does not have. These are the Link properties that determine which information the reference object will receive from the base object. These properties are LinkAnimation, LinkBaseObject, LinkConnections, and LinkSize.
The Link properties are:
LinkAnimation - determines whether separate animation or expressions can be set up for the reference object.
LinkBaseObject - specifies the name and global object display of the base object. This property is read-only and cannot be changed.
LinkConnections - determines whether separate connections can be set up for the reference object. Reference objects that do not support connections will not have the LinkConnections property.
LinkSize - determines whether you can resize the reference object.
The Link properties are given default values when the reference object is created. The default values for LinkAnimation, LinkConnections, and LinkSize can be changed when you copy or drag a global object into a standard display in the Displays folder, or edited later.
You can edit these properties for a given reference object in the Property Panel.
You can also change the default values that are assigned to a reference object when it is created. If you change the default settings for the Link properties, the list of properties available in the Property Panel for the reference object may change.
In addition, you can break the links between the reference object to its base object. When you do this, the object becomes a standard graphic object.
The new default values will be applied to all new reference objects, as they are created.
This removes the Link properties from the reference object, making it a standard graphic object.
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