The RAD-PADs tab is used to prototype filters and command handlers:
You can add images to you prototype using the Images Palette. You can also use the Google Images button to open Google Images as a source of drag-and-drop material for RAD-PAD content.
Note that when you are dragging and dropping images on a RAD-PAD, you need to carefully position the caret on a writable line in the RAD-PAD. An easy way to see where to drop the image is to type in a letter first and then position the caret just after it.