This launches the Editor pane, where I can review the issues and suggestions. Microsoft Editor helps you avoid language that ...

In the Editor pane (on the right side of your screen), go to Similarity and click Check for similarity to online sources. The status will change to Checking for similarity and may take a few ...

There are a bunch of packages you’ll likely need to install - you’ll probably get them listed in a yellow bar at the top of the editor pane.