To move the frame, In the Layer pallate, select the Frame1 layer and then in the tool bar, select the  Move Layer tool (it's right about the selection tool). This will allow you to move the frame and all it's contents (as long as they're all in the same frame group). Hope that made sense.

The purple is strictly a visual representation of the masked area. It's not something that will print or export to my knowledge. If, however, you want to hide the color, you can right click on the Mask for that frame group (it's the black and white thumbnail in the frame 1 layer.  Then uncheck the Show Mask option.