Tutorial image link is broken.
I can't find InCopy UserVoice, so leave a message here.
The image display on the page below is not working properly.
Why don't you check the link again?
And if you have InCopy UserVoice, please tell me where it is.
The page https://helpx.adobe.com/kr/incopy/using/workspace-basics.html has been updated.
Adobe InDesign team