It is not possible now to simulate a drag and drop interaction with catalyst. It would be great to have a possibility to create this kind of interaction on a project without having to open Flash Builder and edit the code.

Capability to add images by dragging,just like you'd do in Photoshop from Bridge without having to make a library or deal with different kinds of files.

Edittable templates,that way it would be easier for beginers(like me) to learn web development

A tool option to make a gallery(or something like that) from a buch of images,video or audio files.