At this moment, mashme.io does not allow the use of annotations on presentations in a session. Therefore, the presenter must use Microsft Edge in order to make annotations.
1. From the menu, select "Present"
2. Click "Screen Share" so that the participants can see the annotations you are going to make
3. Open Files on the screen of the presenter and find the presentation that you want to annotate
4. Right-click on the file and select "Open with" / "Microsoft Edge"
5. Presentation opens as a PDF
6. You can annotate the slides by clicking "Add Notes" (top right corner of the screen)
7. Left-click and hold down the mouse to start annotating the slide