The Display Manager builder records changes made to the page automation layout by drag and drop operations in the Design panel.
A Display Manager builder is added to your model when drag and drop operations are performed in the Design panel or the palette in the Design panel is used to add objects to the page automation layout. You can use the builder call editor for this builder to make in-place changes to objects on a page in the model. You do not need to add the builder to your model through the builder picker. The builder is added for you automatically when you make any changes on the page that require the builder.
It is important that you do not have more than one of these builders for a particular page.
If you disable or delete the builder in your model, the changes that were made to the related page are removed.
Parent topic: Builder Reference: wpf7
About using the builder call editor: wpf7