I like the feature, which allows to copy column name from the Order By Options. I use it often. In prior versions you could mark the name of the columns and use ctrl+C to copy. in 24 there is an icon, making the feature visible and nicer to use. Love it.
But if I click the heading of a lob column, I only get the message "You can't sort by CLOB or BLOB columns". That's right.
Could you consider showing the same box, with the same copy-icon, and replace the "New Order By:" section with the same message?