Hello,

1. Use content position option inside the row to put our button in top, center, bottom http://prntscr.com/nu8til

2. Enter the button element and align to left or right http://prntscr.com/nu8tvy

3. Use the row paddings or the full-height option to configure the height of the row.

You will find here video tutorials, helping to create templates: https://wpbakery.com/video-tutorials/

Best Regards