I can confirm that the Toolbar Creator definitely works on the Surface Pro 3. Scaling issues in the options window have been corrected. It would still be nice to be able to resize the options panel though. For a future update, please consider allowing buttons to span multiple columns or rows. This is helpful for rocker buttons. Also, it would be great to create additional columns of buttons. I'd like to be able to scale the buttons in Row 30 and have the other row buttons scale accordingly.