New SmartThings Integration - Hide Devices?

Just found out about this after messing with MQTT and the SmartThings Bridge. It was sooo much easier, everything came right up. However, everything from smartthings was brought over and I ended up with a lot of duplicates (harmony activities, nest devices, etc). It seems like the current ST smartapp does not allow you to select which devices are included. Is there any way to hide them? I tried setting them to hidden in the customize.yaml, but it didn’t seem to work.

Still trying to figure this out as the Configure UI option does not allow me to delete devices from the unused entity page.