At the moment when using the online suite to present lessons it is only possible to use the pen tool on 'teacher' pages. It is possible to type on student hand out individual pages and collaborative pages, it would be useful to have this feature available on all pages.
This have become a problem since present from home on a computer where using the pen tool it very difficult to use effectively.
It would be even better to have the equation editor too for secondary and higher mathematics teaching, and the geogebra widget.