Dropcam connect is not listed as a smartapp with new ST app. If you were using it under the old app and want to continue to use it esp if you’re migrating to v2 hub, email ST support. They will enable it. Apparently ST is reviewing dropcam integration given recent changes I assume with Nest acquisition. I didn’t see this mentioned by any other thread.
I am looking for this as well. Just got my ST and two cams are the last thing i need to get connected
Click the link in my first post - should get you going