Shifting watermarks away from edge of photos

It would be great if we could further shift the watermarks on images after selecting a corner or placement.  For instance, if I select Bottom Left for the watermark placement, it hugs the bottom and left edges waaaay too close, and I’d love to be able to move it inwards just a bit so there’s a buffer from the edges.  Hope this makes sense.  You can do this very easily in Adobe Lightroom, something similar to that would be very helpful!