Hi,

Thank you for reaching out to us.

Just to confirm, are you referring to the single post template?
If so, here are the resources you can follow:

• To use the default theme single post layout, please refer to this guide:
  https://help.themeruby.com/foxiz/post-settings-layouts/

• If you prefer to use the Ruby Template for building a custom single post layout, please check this documentation:
  https://help.themeruby.com/foxiz/how-to-structure-a-single-post-layout-using-a-single-template/

Feel free to let us know if you need any further assistance!