Feathered Edge Selection

It would be great if the selection tool had an edge feather adjustment, like the eraser tool does. At the moment, when you copy & paste a part of a drawing from one frame to another, you have to use a soft edged eraser to tidy up the join and remove the hard edges where the pasted part meets the drawing. If you could add a small feather to the edge of a selection, then the drawing and the pasted area would blend smoothly, requiring less cleaning up.