1. Where to add links for ‘Social Icons’ in header/copyright?

• These are via widget. Social icons can be added / removed as per choice.
• Find it here : Appearance > Widgets
• Drag ‘Custom: Social Network‘ widget to preferred sidebar.
• Provide URL of the fields ( social icons ) you need to display. Leave blank otherwise.

  
  

• Charvi has this widget added in – ‘Header Widget Area – Three’ and ‘Copyright Widget Area’

2. Where to add links for ‘Social Band’ above footer?

Find option here : Appearance > Customize > General Settings > Social Share Band