Hello Jo_Ann,
I realise it's been a while since you kindly responded to my question. Try as I might I have been unable to create the curved planed you showed using the custom backsplash tools. I have searched the documentaion, help files, YouTube, etc. but can find no hint as to how to achive the look you did. Could you possibley explain the key steps you used to create that curve between the backsplacsh and the countertop?
Sincerely
A