Create retentivity storage
    Create a retentivity storage data store to retain data of specific project nodes.
     TIP: 
    For some property values, you can use dynamic links. For more information, see Create dynamic links.
- Create the retentivity storage object:
- In theProject viewpane, right-clickRetentivity.
 - Select .
 - (optional) InProperties, inName, selectto rename the storage.

 
 - Add a project node to retain its data:
- InProperties, next toNodes, select.

 - (optional) Selectto rename the node.

 - (optional) Expand the node. InKind, select
 Set kindand create a dynamic link. - (optional) Expand the node. InNodeClass, select the class of the node or selectand create a dynamic link.
 Add Dynamic Link 
 - Specify how often new data from the selected project nodes is saved by doing one of the following:
- InWrite delay, enter milliseconds by selecting.

 - InWrite delay, selectand create a dynamic link.
 Add Dynamic Link 
 - Determine if you want to retain only the changes that are already stored by doing one of the following:
- InDelta observer enabled, set the value.
 - InDelta observer enabled, select.
 Add Dynamic Link 
 
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