Import tool - cannot map multiple Hippo 7 content types to one imported type

Use case:
Legacy content contains one content type "webpage" which is used for news articles and generic text pages.
New Hippo 7 environment contains specific content types for "news" and "text".
Currently it's not possible to map both news and text to webpage. Only a 1:1 mapping is supported.
It would be useful to map multiple types based on location / content path. For example, all webpage docs under /content/news should be mapped to news, everything else to text.