Scroll both views at once.

Many split-view markdown editors have a feature where scrolling the source view also scrolls the preview, so you can see the relevant part of the preview in long documents.

Would be nice to have some sort of scroll lock button on the top bar or even some button that appear on overlay when moving the mouse close to the scroll bar to enable / disable the synchronized scroll.

I like the idea with the scroll-lock. If we add this, I think it should be a check-button in the popover menu in the window like this side-panel button in gedit:

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+1 for this feature Not scrolling both views at once is my only gripe when using this great markdown editor. It should work like this website: https://markdown-it.github.io/ I really hope this feature will get implemented.

Another +1 from me. On long documents the work in dual-pane mode becomes tedious. This editor is great otherwise, and nicely integrated with Gnome. Thank you.

I suspect - this is going to be affected by same issue as post-refresh autoscroll. I'm using version 2020.04.04, packaged in distro. At least when I switch styles in settings - it always jumps to top. But multiple times, while editing, it jumped not to top - I guess it tried to autoscroll, but missed. Also some CSS break linear coordinates mapping by utilizing global multi-column view, such as scidown_article.css.