Thank you very much. I was able to use your instructions to do it using the selection method, but I just had to add an extra step to use the bucket tool to fill the selection border (outline) with paint. But I just wasn't able to figure out how to use the two finger method to draw a perfect circle. Can you please explain that.
For anyone else reading this question, I was also able to select an entire image with a rectangle, do Select > Border, give it a thickness or radius that I want, tap Border in the upper right corner, but this time when I chose the bucket tool to fill that double rectangle selection (the border or outline), it would only fill it in tiny pieces based upon the colours in the image, so I had to create a new layer and then when I tapped inside the selection to fill it with my bucket tool, it filled it entirely, creating the border I wanted.
Thanks again, Lucky Clan.
Gary