Consider the following scenario:

• create a contentApp with multiple subApps
• each subApp got his own workbench with distinct trees & nodetypes

There is no way to reference one of the subApps browser dialogs. We can only reference the contentApp by property 'appName' within a external dialog (e.g LinkFieldDefinition), but subApps are not considered by this approach. By Default, the first subApps browser dialog is displayed.

A work-around is to split the contentApp into multiple contentApps, one for each subApp.