Need help linking my HS105 smart plug to my HS200 smart switch so it would follow the switch and turn on and off with our wall switch automatically. Don't see anyway to do that in the app. Grouping only works from the app but not from the switch itself. I thought of using IFTTT but didn't find an applet for it and don't know enough about it to do it myself. any help in the right direction is appreciated.