Like I said im not familiar with the RKL interface but this is how I do it on the RKE
Timer 01
set this for one "plug" of your lights
Timer 02
set this for the other "plug"
if you have a 3rd, set a 3rd timer
then go into that plug on the interface and set it to timer 01, next plug timer 02 etc..
you should be good to go - set the actual plug up as a device (temp) and you can set the low and high points that will make the lights turn off if the temp gets too high - that is if you are using a temp probe.
Robb may be able to help more since he has the RKL..