I love that with MSPC I can select the number of columns I want on the desktop version. It would be great if you could add a similar option to mobile, where it currently forces a single column.
We're offering 14 color choices per section, and it's not a great experience for users to scroll through all of them, then scroll back to see how is looks in the design window. Changing that to 2-3 columns would be much better for the user.
Here's an example: http://lowboybeaters.com/product/beater-builder-single/?start_customizing=yes
Thanks for considering it!