For non-default checklists, because the Checklist Filters query values from the listed_taxa on a given checklist, but the writing/display of Establishment means & Occurrence status on a listed_taxon is routed through its associated primary_listed_taxon, it is important that these values are always the same on listed_taxa and their associated primary listed_taxa. Otherwise queries might return seemingly bad results.
One way these related listed taxa (primary listed taxa and non-primary listed taxa) can have Establishment means and Occurrence status values that differ is through 'Add batch'.
On creating a new checklist and clicking 'Add batch' the user can opt to add a CSV with columns for Establishment means & Occurrence status. The CSV data should not just create new listed_taxa on the checklist, but also write the Establishment means & Occurrence status values to their associated primary_listed_taxa.