rigid geyser
Unreal's Online Documentation Layout no longer shows the Version pull-down to quickly switch between versions while looking at the same feature (among other features, like being able to scroll on the side to discover other features and sub-features if you're just exploring).
Here's how to "quickly" change the Documentation Link for the specific version. It's quite hacky, but relatively fast.
Take the link to the page you're looking for:
https://dev.epicgames.com/documentation/en-us/unreal-engine/animation-editor-mode-in-unreal-engine
Then add this string to it, and set the version to whatever version you're looking for:
?application_version=5.1
The final link will look like this:
https://dev.epicgames.com/documentation/en-us/unreal-engine/animation-editor-mode-in-unreal-engine?application_version=5.1