It would be nice to allow @mention for naming the right persons in a note, for tasks, but even for every note you create. This will help to find persons in a right way (without typo's) and find all tasks related to a person.

so if someone wants there work to be videoed on onenote they could use the camera

Add more flexability and functionality for mindmaps

Allow users to modify and add Custom tags in the web app just like the desktop app. Also, the web app tags should Sync with the desktop tags.

It should be possible to add pics straigth through the camera.

I'm from the UK, I would like to be able to select UK English rather than American English as a default language for display, spelling etc.

so you can see other people, it would make it a lot more popular too

I would like One Note to be able to
A) Allow me to merge notes, pick the order of data inside them and interact as if it was a DTP operation.
B) Drag and drop from a notebook to another
C) Unify the experience between One Note and One Note 2016. It is impossible to open the same notes and look in the same places. One Note prioritizes the cloud. One Note 2016 works also offline.

We should be able to translate words from other languages.

Have an option in the drop down menu to switch languages quickly for students taking World Languages.

Would be great to make it way easier to move notes around note books, and even allow multiple selections.

Make it possible to organize the pages in OneNote so users can either arrange the notes by alpha order, date, size, etc.

Also, I would be fantastic if right mouse clicks would work for copy & paste.

Please add the ability to search for tags as you can in the desktop versions.

Also support the idea of tags being collated on separate tabs EG, to-dos, sprinkled amongst meeting notes getting summarized in one place. Ideally all tags on a tab would get sorted and summarized on a page in the tab.

It would be nice to have an easy way to switch students between class notebooks if they switch physical class.

to be able to choose how to have your sections or pages organized.

The URLs from OneNote are way WAY too long, sometimes over 300 characters.

Putting URLs in Excel, for example, you are limited to a URL 256 characters long, so you cannot add OneNote URLs to Excel, which would be great for documentation purposes.

When you paste a URL into Excel's Link box then click it, you usually just wind up at the OneNote notebook, but not the note that should have been specifically linked to.

It would be kinda neat if there was markdown support for OneNote like StackEdit. It's easier to do programming/engineering notes in markdown as its faster to make headings, quotes, definitions and code blocks.

I love onenote, but it's just too slow to still resort to slow word/rich text formatting when you're trying to keep up with the prof in a lecture or a TA in a tutorial.

It should be optional to make a note markdown friendly so only the users who want to use it may use it.

Simple image rotation would allow us to fix up when Office Lens gets the orientation wrong on an uploaded photo.

Drag one of your checkbox list items up or down to reorder instead of cutting and pasting.