Custom autofilling fields for metadata

Hi,
Is there posiible create custom autofilling fields that will be works fine both clover desiner and clover etl engine?
Also I would to know how to declare autofilling field for SpreadsheetDataReader that will be producing a sheet index (not sheet_name)?

Hello Rifttech,
unfortunately, there is no easy way to create additional custom autofilling fields (either in the Designer or Engine). Having said that, the answer to your second question is, I am afraid, that the sheet_id cannot be obtained as well because it is not part of the existing list of autofilling functions. I am sorry for the inconvenience.
Best regards,