If you have superpowers, you’ll see them listed (along with all your other permissions) on your Toolkits and Permissions (a) link from the header bar. Click the Open superuser toolkit (b) button to launch the dashboard.
From here you’ll see a list of features which you’re able to use. If you’re not sure about any of them, please get in touch before using them to check that what you’re doing is correct.
Please refer to the following pages for more information about each of the functions listed.