Two tab actions are associated with the Device types window:
When you click this action, the selected device model is removed from the list. Note that you cannot remove device models that are already identified by DME's built-in list of device models.
When you click this action, you can upload an image of the selected device model. Note that you cannot add or change the image of a device model that is identified in DME's built-in list of device models. For more information about adding an image to a device model, see the procedure Uploading a picture of the device in Information.