We're looking to create a couple add-ins to mimic some of the functionality of the AF ERD plug-in. Specifically, we want to create a docking window where the user selects a node from a tree, and this causes the tags used in the display to update accordingly. Also, we would potentially like to save the list of nodes in the ProcessBook display. The example Visual Studio templates show how to create a docking window and also the IDataProvider3 add-ins, but not how to make them work together. Does anyone have any examples of this?