Use a pointer to draw attention to model features

Select Presentation > Pointer (or press the P key).
The scene is grayed out, with the area around the cursor highlighted with a white spot. This pointer is visible across online sessions.
To move the pointer, hold down the P key and move the mouse.
To change the size of the pointer, hold down the P key and scroll with the mouse scroll wheel.
(Or, hold down the P key and click, hold, and drag with the left mouse button.)