Will this undocumented feature insert both the current date and time as a single cell value into a Google Drive spreadsheet row? I have a similar issue with my CT100 Z-Wave thermostat. I want to log activity for changes to the mode, fan, thermostat set-points, etc. in my flows. Unlike my Z-Wave light switches, the action 'Add row to a Google Sheets spreadsheet' doesn't have a date/time parameter available for this thermostat.