These settings are saved in the current url. Make them permanent by creating a bookmark.
#./plugins/sensors.yaml
---
title: Voltage (#{self})
file: /^voltage-(?<legend>.+)$/
vertical_label: Volt
---
title: Temperature (#{self})
file: /^temperature-(?<legend>.+)$/
vertical_label: Celcius
---
title: Fanspeed (#{self})
file: /^fanspeed-(?<legend>.+)$/
vertical_label: RPM