Copying from Content Library on Class Notebook online
Students need to be able to copy from the Content Library in the Class Notebook when working in the online version.
We’ve just rolled out this update today! Details at the blog: https://techcommunity.microsoft.com/t5/Education-Blog/OneNote-and-Class-Notebook-updates-for-the-new-year/ba-p/308165
Paul Harrison commented
This was possible until last week. An update to OneNote Online has broken this. This is causing big issues in the classroom.
Joe Bartholomew commented
Am sure this was possible until recently but an update to Onenote Online seems to have removed this feature.