Select Complementary Tier When Importing Members?

When importing a CSV of members, I can currently set the field complementary_plan to true or false.

This creates some issues when using multiple tiers, since I can’t choose which tier the imported member will have complementary access to. Setting the imported property to true does add a complementary tier to the member, but I wasn’t able to figure out how Ghost chooses which tier is applied.

An ideal solution would be to add a field for the product ID in the importer (this field already exists in exports)