Here you go. 
That said, if you are not seeing your hub listed, that’s a problem. Because you won’t have a location to install the code into.
So you should definitely contact support about that.
Usual reason for this problem is one of two things.
One) you accidentally signed up for SmartThings with two different email accounts, one that you are using for your mobile app and one that you were using to sign into the IDE. This will produce exactly the symptoms that you are seeing, an empty device list.
- you went to the IDE by using a specific URL rather than following the links from the smartthings.com page and consequently you signed into the wrong “shard.” Again, this will give you an empty device list.
From this forum click on the community link at the top right of the page.
When you are back on the first page of the forum, click on the “developer tools” link at the top right of the page.
If you sign in from there, it should take you to the correct shard and you should see your devices. (Assuming you’re using the right email address)
If you still don’t see your hub then, contact support@smartthings.com