I see similar questions asked, but have not found a workable resolution. I have a Lutron bridge and the Caseta app on my ipad and iphone. When I try to add device, I do not see any option to add manually. If I scan, I do not see any new items. I can verify that the additional plug in lamp dimmer is working in the Caseta app and I am able to control it. How can I get this add on into my SmartThings?