can you set waypoints for units?
Can you hotkey units?
and also does anybody know where i can find a manual to this game online?

1. Yes, hold shift and click where you want a unit or units to go, and let go of shift and click on the last spot you want the unit to go and it will go to those way-points

2. Yes, pick a unit, units, building, or buildings (best for turrents if you want them all to attack one thing), hold control and press one of the number keys from 1-9 to set that group to that number, then press that number to get that group.

3. I don't know