I would really like that feature too.
It seems that individual assets in Project Window can be customized, but I haven’t found a way to extend the Window’s UI.
That’s cool, it’s working! I also noticed this plugin: https://github.com/acoppes/unity-history-window in your list of references, may be useful for users who want to go further with a full navigation history.
For now I’m just using unity-cutcopypaste-nav, and in fact, noticed that cut/copy/paste assets was added to native Unity editor since. Fortunately the native and custom code seem compatible, I have no error, the custom code takes priority (I can see a red outline when cutting) and seems to work the same.
But for minimalism, it may be nice to disable cut/copy/paste, at least in Unity versions where this is native. I couldn’t find the place in code that binds the shortcuts Ctrl+C/X/V, but it seems hardcoded as I don’t see it in the list of shortcuts (Edit > Shortcuts). Maybe later I can try to just remove cut/copy/paste code and cleanup until it compiles; but right now I’m adding your repo as a package so it’s read-only.
And I still think Unity needs to make it native. We got it for cut/copy/paste, so maybe it will arrive some day…
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Thanks for letting me know that it finally they has it in native!
I’m somehow still on 2020.3.18f1, didn’t know which version they adding this?
For the shortcut, yea, looks like the original author hardcoded it. The main function is at CheckForCutCopyPasteCommands if you want to just remove that functionality.
The best way is to probably check a preprocessor version define against the minimal version that has this native feature.
code seem compatible
Credit goes to original coder, he did a good job, lol.
maybe it (other feature) will arrive some day
Yea, with fancy back/forward button
Edit: Found the version, I might add #ifdef to my plugin later (?)
Let’s hope that they will also add explorer navigation too 
so my plug in can finally rest in peace.
I can’t agree more!