I wish I could open the same file in multiple tabs. Basically, I want the same functionality as cmd+2 gives me, but without creating a split.

In another editor that I use, my workflow consists of this rather than splits or bookmarks. I "duplicate" the current view, scroll to the other place in the file that I want to inspect and to "go back", I just close the tab again. Once you are used to it, it's a very nice workflow.

Now, as far as I can tell, this is not really possible? I'll gladly create an extension if possible. I guess I could allow opening files with an additional query-parameter or something, effectively showing two copies of the same file. However, I worry that this would give me constant "this file was changed outside" dialogs which is not what I want -- I want the buffers synchronized the way splits are.

Can someone help me in the right direction?