Edit Fixed Schedule

Greetings. I am new here and new to rachio with a 3 controller Gen 3 system. I setup a fixed schedule to water certain zones that have just been seeded for grass. I initially set it up to run daily but now want to change that to twice/day. When I try to edit the water frequency though it only lets me choose from daily options, i.e. everyday, every 2 days, every 3 days, etc…Is there a simple way to edit the water frequency or must I delete the old schedule and start anew?

Changing schedule frequency “type” requires creating a new schedule.