Hi Ctrl F1 is ok for going in terminal window but Ctrl F2 does not allow me to quit terminal mode ! the only way I find is to Off/On the VM Which is a little bit long !.
on the other hand how do I open the pdf tutorial in the VM ? (I copied the tutorial PDF in /sage/home/sage/SageTuto). I found Sage very very complicated, I m not sure to continue with it.