After importing, users use simple WYSIWYG techniques to create and edit behaviors (mouse event handling, etc.)
Flash Catalyst can also use design-time data placeholders when marking up an application, testing interactivity, and choreographing motion.
Imported objects are maintained as linked files, so behaviors created in Flash Catalyst are still maintained even after the original file is edited in its originating program (e.g., Photoshop or Illustrator).
In addition to its primary function of being a GUI composer for Adobe Flex components, Flash Catalyst also features a basic code workspace, which consists of a subset of Adobe Flash Builder's panels.
Both tools being based on Eclipse, the code editor, project navigator and problems view are basically the same in both products.