All themes should have the option of left or right widget menu, full or boxed.

These are simple things to change with code but those can be set back with updates. Wp themes are too basic and restrictive.
All themes should at least have the option of centering the loop container, switching left or right sidebar, using full of or boxed, and s vying of template for custom post post types. Also a full blank pg option meaning not even the homepage header or other elements show. Also options for where the mobile ha mugger menu slides open, top, side left, side right, or stay on top during scroll.

Which plugins might help me accomplish this so I don’t have to do it in eac theme test?