Extends the visible scrolling range of a single editor pane, through multiple editor panes. Intended for wide screens that do not turn around. Find it on Visual Studio Code Marketplace page
Open the same file on a new tab/editor-pane by pressing "ctrl + \" (or as seen below) and you are good to go:
Use "ctrl + shift + p" > "Toggle Under Scroll" to Disable or Enable It
- (temporarily) FIXED switching issue between 2 editor-panes (the issue is still present for more than 2)
MIT Licence
Basicly this extension was possible (kind of) mainly thanks to this extension.