In ST4 you can:
- Create a 3 column layout for example
- Select the first column and open a file in it from the sidebar
- Select the second column and open the exact same file from the sidebar
- Do the same with the third column
Now you are looking at 3 instances of the exact same file. How is that even logical?
On top of that if you switch back to a single column layout, now you have 3 tabs containing the same file in a single column layout.
Is that a feature or a bug? I really don’t know.