Hi Richard, this is great feedback! Your feedback about allowing Outlook
file drag-n-drop is understood - we have this on our roadmap to provide
better Outlook-Teams integration. If you could also post this feedback
into UserVoice - https://aka.ms/teamsfeedback - this feedback will get
included in our product planning cycle automatically. Re: your feedback
about uploading more than 10 files - could you provide more info on your
scenario. Eg: Would a folder upload work better for you instead, or a
batch upload for any number of files in the same folder?