This might not be the most important thing you need to know about the Manage Schemas page, but it could come in handy from time-to-time. (Plus it’s something to be aware of if you have data on your clipboard that you haven’t done anything with yet.)
When you’re looking at a schema on the Manage Schemas page, the second column in the schema listing is the name of the attribute:
If you click on an attribute name, that name is automatically copied to the clipboard. That explains why you see this notification:
Need to copy an attribute name for use in a search query or an API call? This is a quick and easy way to do just that.