When propagating changes from the upstream to the downstream structure using structure transformation actions, the QuickView thumbnails for the parent assemblies of the affected objects are removed from the downstream structure. Thumbnails for all parent assemblies up to the common equivalent context are removed.

However, you can change the default behavior so that the existing QuickView thumbnails are retained in the downstream structure. Set the property com.ptc.windchill.associativity.viz.ManageQuickViewOnStructureChange to NONE. Out of the box, this property is set to DELETE_QUICK_VIEW. The property is available in <WT_HOME>/codebase/com/ptc/core/foundation/associativity/xconfs/associativity.properties.xconf.

When creating a new downstream structure using structure transformation actions such as New Downstream Branch and New Downstream Part, the representations and QuickView thumbnails for all subassemblies are carried forward to the downstream structure. You can control this behavior using the property com.ptc.windchill.associativity.viz.carryForwardRepresentationForAssembly. When the property is set to false, the representations and QuickView thumbnails for subassemblies are not carried forward. This property is available in <WT_HOME>/codebase/com/ptc/core/foundation/associativity/xconfs/associativity.properties.xconf.