That's available in vim via the vim-abolish[0] plugin... which has other capabilities, but the one I take advantage of is case-preserving S/one/two/ which does

That's available in vim via the vim-abolish[0] plugin... which has other capabilities, but the one I take advantage of is case-preserving S/one/two/ which does what you want. It's odd vim doesn't have that builtin, I'm half convinced it does and I just haven't dug enough to find it. [0] https://github.com/tpope/vim-abolish https://github.com/tpope/vim-abolish