The POWr Edit Icon lives on top of every POWr Plugin. Clicking the Edit Icon will launch the POWr Editor for that plugin.
If you don't see the Edit Icon, there are a few simple steps to take.
Make sure you are logged in to your account at POWr.io. Only the creator of a plugin can see the Settings Icon. Visit POWr to log in.
Click on your plugin. Then press "p" + "up-arrow" on your keyboard at the same time. You may need to do this a few times. This "POWr Up" hotkey should make your Edit Icon appear.
If neither of these strategies work, make sure your browser is accepting cookies from POWr. Cookies are necessary for the POWr system to recognize you as the plugin's owner.