Setting Dimmer Level without turning on


Those options are inside the SmartThings app on your phone

It is the same method you used to get your other devices linked to webCoRE


By the way, if your webCoRE install did not use GitHub in someway, then likely webCoRE is not installed. WebCoRE’s core functionality is not just a one click app to install. The phone app is just a user interface. You actually need the four elements as described here:
(newbie install time estimated 20-25 minutes)

The video there is helpful, but the text below it is much more up to date.

If you are having problems with the install, I would create a new thread based entirely on that subject, so your questions gets the most exposure. (this thread is a year and a half old)