Import features for multiple releases at the same time Merged

I do pre-planning of features and requirements in a spreadsheet, and would like to be able to import them into Aha!. I may have features for multiple releases, and have a column that lists the name of the release that each one belongs to. 

Currently I have to save this into multiple spreadsheets, one per release. It would be useful of Aha! could assign each requirement to a release based on the Release column in the spreadsheet.