Howto: create a child theme for Twenty Seventeen using Child Theme Configurator plugin.
Add a sidebar to Twenty Seventeen pages
Howto: add a sidebar to pages on Twenty Seventeen theme
All you need for Twenty Seventeen WordPress Theme
All you need for Twenty Seventeen WordPress Theme
Howto: create a child theme for Twenty Seventeen using Child Theme Configurator plugin.
Howto: add a sidebar to pages on Twenty Seventeen theme