Not sure if this is the proper channel for such request, but here's a suggestion for a feature in Numbas. If a user can upload a zipped folder and unzipped the entire structure in the resources section, then he can import a large variety of external resources to the construct of a question or exam.
Say, for example, I can import a html website created from a keynote presentation. This simple tweak to the resource uploading will open up much more variety to the external content we can bring to NUMBAS.
For your consideration.
sincerely,
Dean Ang