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I want to open up two different parts of a document in horizontal splits (using :sp) and scroll both of them left and right together. For vertical scrolling, you would use scrollbind. However, I'm not sure what to use for horizontal scrolling.

I know the capability must be available because when I use vimdiff, it scrolls horizontally in both documents at the same time.

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To scroll two windows together in vim, need to run :set scrollbind in each of them. As you noted, by default, this only binds vertical scrolling. In the docs for scrollbind, it mentions:

The behavior of 'scrollbind' can be modified by the 'scrollopt' option.

:help scrollopt reveals that you want to say :set scrollopt+=hor to enable horizontal scrolling.

If you just want horizontal scrolling (i.e. disable vertical scrolling), then you will also want to say :set scollopt-=ver or explicitly set scrollopt via set scrollopt=hor or :set scrollopt=hor,jump.

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  • Cannot fully decouple scrolling. After having :set scrollopt= (equal nothing) still move commands like 'm (jump to mark "m") or gg are performed on both my two windows. It's ubuntu gvim after doing a :vertical split with no file specified
    – Juan Lanus
    May 27, 2016 at 18:09
  • Apparently I solved the issue mentioned in the previous comment by setting :set nocursorbind in addition to :set scrollopt= (nothing)
    – Juan Lanus
    May 27, 2016 at 18:29
  • Not fully solved. Another option was left, :set nodiff. My vim was thinking that I was diffing two views of the same file. The nodiff option removed the all-dashes lines that vimdiff uses to sync both sides.
    – Juan Lanus
    May 27, 2016 at 21:18

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