By using this plugin you can manage custom meta boxes from admin side.
Polylang and Option-Tree bridge, that allows you to have different theme options for each language.
Redux Converter allows you to get going with Redux Framework almost instantly. Just install and run in a theme using one of the supported frameworks,
Adds Option Tree fields for linking Gravity Forms to Option Tree, allowing you to select a specific form for an option.
Add a [ot_get_option] shortcode to the WordPress editor to include data from OptionTree.