I recommend that you seperate changesets containing highways and buildings becasue highways can be very long features which will make your changesets large and it will become more difficult to view the buildings you've added. Please state in your comment when uploading (saving) if you've modifed a highway. Once you've writen a comment it's easy to reuse it with the drop down selection menu by clicking on/near the comment.
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            Published using OSMCha: https://osmcha.org/changesets/162354648
            