So we’re almost there…I need to be able to apply this formula to a specific group of records that share a common link that I apply to a group field. Meaning, that the function starts from 0 with each group field.
As I said before, this method will not work with record groups. Record grouping is simply one way that Airtable displays data. The data in the actual records is not aware of the groups. A record has no idea which other records are in the same group as itself.