How do you direct troops to different locations at the same time ?
In RTS mode select 1 or more units and hit Crtl and a number to assign them to a control group, then you can select that group by hitting 1-9 or 0 (and if there are more than one unit type in a group you can hit Tab to cycle through their abilities). In dragon form you can select control groups using Alt + number (and if there is a building in the control group you can use hotkeys to build more units).
