Add People To A Call In Progress; Use The Whiteboard; Drawing On The Whiteboard - Microsoft Surface Hub Quick Reference Manual

Add people to a call in progress

If you're already in a conference call and need to add someone else, select
People on either side of the screen and search for the person or enter a
number. Repeat for each person you want to add. Select Invite to add them
to the call.

Use the whiteboard

Grab a Surface Hub pen to launch the whiteboard app from the Welcome
screen (the pens should be stored on the sides of the display).
If you're working on a Word, Excel or PowerPoint file, just start writing with
the pen—your notes will be saved in the file. If you want to save your
markups to OneNote, select Annotate in the app's title bar.

Drawing on the whiteboard

Use the Surface Hub pens to write on the whiteboard. To change colours,
choose the one you want from the menu at the bottom of the whiteboard
screen.
To erase, flip the pen over and press it on the touchscreen like a pencil
eraser. Or, select the erase button to erase with the tip of the pen tip.