As the title said, I have no idea where is this new feature and what does it do. I looked at the help file but I can’t find any instruction about it. Please explain if possible, thank you!
It’s on the Font Properties Identification dialogue tab.
You may have come across many fonts with four type styles: Regular, Bold, Italic, and Bold Italic. Perhaps you have also seen some with other weights such as Light, Semi Bold, or Extra Bold.
If you use the same Font Family for all of the weights, Applications will list all of the weights and styles under one font name.