Add a smart "Commit as fixup" command palette option
Wouldn't it be great if you could just stage some CR fixes, open the command palette and type "fixup", and you'll be prompted to specify the commit to fixup? And even better, if all the changes staged are changes to the same commit (that is, before those changes, the git blame for all the changed lines points to the same commit), that commit could be suggested as the target for the fixup?
This will make fixups much easier to use, which will help in keeping your repos clean :D
Even better, add as a context menu item when clicking on a commit in the graph view or commits view, i.e. you right click on a particular commit and choose an option called "Fixup..." or something like that
That might require a warning about changing that commit's hash and all the hashes of the commits after it.