I am only using 1 or 2 of the pricing grids and so it keeps aligning them to the left as if it wants me to add more grids. How do I only use 1 or pricing grids and have it centered on the page within the theme?
You should go to Appearance> Customize> Widgets> Packages section and set the Widget Size value for each widget added to the section. Widget Size can be fount at the bottom of each widget settings. You can find more information here https://motopress.com/forums/topic/emmet-lite-features-section/#post-256761