I have the EasyWeather software in the WS1081 station, but I can't delete the maximum and minimum values that originally came with the station, it does not allow me to erase them or update them.
Indeed, the EasyWeather woks with the WS1081 as it's the recommended application to manage this device. However, since there is no other info related to your inquiry, I strongly recommend downloading the user guide/manual of the software from the its official website. I am saying this because it might be possible to actually have to reset or configure the device instead of using the EasyWeather application.
I have the EasyWeather software in the WS1091 station, but I can't delete the maximum and minimum values that originally came with the station, it does not allow me to erase them or update them.