Just got the game and going through the tutorial, I press F1 to bring up the roster. On the left hand side are the buttons to order the list, and I see only a fraction of the buttons mentioned.
The last patch added an additional roster function: The stack list. You can change between the stack list and the in the tutorial mentioned unit list by pressing the F1-key again or clicking on the button below the filter buttons, the one without symbol (watch the tooltip).