DO you have a stand alone or one connected to the Profilux.
If the former, I am not sure if you can as I believe it is the same as the Profilux which has only 8 manual settings you can make.
If the latter you can set 6 timers, make three timers with 8 settings on the hour and three timers with 8 settings on the half hour.
Use two of the first timers with one programmable logic, use the output of that to another programmable logic with the other timer and tie that in to the doser output you want. Repeat for the other three timers!
Or just set automatic like I do for 24 operations per doser and the profilux will automatically space them out and not dose each one with in five minutes of each other. This is more than enough if you are dosing into a decent flow area (sump or tank) as Alk dose will be well dissapated if not completely mixed with the rest of the tank contents before the calcium dosing. I find this works best for me!!