OpenSprinkler › Forums › OpenSprinkler Mobile and Web App › 2 valves at the same time? › Reply To: 2 valves at the same time? December 6, 2015 at 11:17 am #40926 RayKeymaster @james2: did you figure it out? You can click on the ‘gear’ icon next to each station, which will bring up the ‘station attribute’ dialog. There you can set or clear the ‘Sequential’ flag.