I downloaded this(awesome) bot an hour ago but i can't really understand how i should set the rules for my strategy

, i want to set a fixed price that always remains the same, for example, if my buyorder is set at 450 and i want it to instantly setup a sellorder once it has bought(at 450), the sellorder should be 470.. and when it has sold i want my first buyorder to be set at once(450 again)

Simple solution would be to do it with Rule Groups:
Group#1: If price <=450 : Buy 450 : Enable Group#2
Group#2: If price >=470 : Sell 470 : Enable Group#1