Ability to save or customize CSV mappings.

[claudiulodro]

Some sites use the importer regularly as part of a workflow e.g. to update subscription data across many subscribers every week. Having to manually set the CSV mapping every time you import a file is error prone, especially for columns which are imported as custom fields on users or subscriptions.

The best solution I think would be if the mapping would persist from import to import. Alternately, it would be slightly less convenient but still workable, if there was a filter available to customize the CSV mapping. Either should reduce the amount of human error that can happen across multiple imports.