FR: Multiple view ports for heavy texing

This is independent of OS and TeX distribution:

When working on a complex document with several tex files, it is very useful to see two or more files side by side. There is the split view, but with that you have a very narrow tab bar (especially with long file names). You can use the mouse wheel on the tab bar, but that doesn’t merely move the tabs, it makes TeXstudio change to the next tab (and the next, and the next, if you keep on rollin’ …). I don’t find that very intuitive. I suggest three solutions:

1. Change the behaviour of the scrolling on the tab bar to only moving the tabs, without jumping to the next. And maybe don’t make the tabs move in a way that the left edge of a tab is always align with the edge of the window segment containig the tabs, but rather by a fixed/adjustable amount of pixels (letters?), so that the tabs move with a constant speed (the mad jumping of Excel when rows have different heights really sets my teeth on edge).
2. Implement an option to move the tabs to the left/right of the viewport (plus the previous would be even nicer).
3. As alternative to the split view make it somehow possible to open a new window (a new empty window via the main menu, not only an option to move a file to a new window via the tab bar’s context menu) which you can move to a different screen (when you use two or more computer monitors, that way you save the entire width of the window for the tab bar, and you have two PDF viewers when you’re working on two documents). I don’t know if that’s difficult or possible at all. I know there is a potential for conflicts when you open the same file in two windows.

All three together would be the nicest of course, but the first alone would already be a huge improvement in my eyes.

Start by examining the tab bar and split-view behavior described in the issue, then trace how the main menu and tab-bar context menu handle windows. The request presents three alternatives rather than one defined change, so the first step is to establish which behavior is wanted and how conflicts such as opening the same file twice should be handled.