Diff tools display different versions of the same file side by side. I believe OP is looking for something that displays different parts of the same file side b

Diff tools display different versions of the same file side by side. I believe OP is looking for something that displays different parts of the same file side by side. Something like a vertical text wrap as in columnar text layout: https://en.wikipedia.org/wiki/Column_(typography) https://en.wikipedia.org/wiki/Column_(typography)