Have you looked at Bliss Control? Start from there and adjust settings for all the things shown in the screen grab:
After you pick the thing you want to change, you pick the place where you want to make the change. The app will connect you directly to the right spot in each of the sites shown below:
The interesting thing about this service is that they don’t retain any login information – they simply guide you straight to the relevant place on the site in question to do whatever it is you want to do.