I have a whisperer and a pixie configured in the same zone. My pixie is defective (the unit leaks water which wound up damaging the unit and battery and no longer works, replacement is in progress), so I want to delete it in preparation for my replacement. It says I need to remove the sensor first. Is there any way to just move the sensor (a Whisperer) to a different zone, or perhaps to just simply unlink the sensor from the Pixie, or do I actually have to delete the sensor from my account and then go through the process of re-adding it back to my wifi network and all that? The app makes it seem like I have to actually delete it then re-add it. Since my replacement unit won't be here for over a week I had desired to keep the sensor monitoring the soil in case I need to manually water it.