If you want replies to show as individual messages in your inbox, follow these steps:

  1. Open Gmail.
  2. In the top right, click the gear icon Settings.
  3. Click Settings.
  4. Staying in the "General" tab, scroll down to "Conversation View." Choose "Conversation view on" or "Conversation view off."
  5. At the bottom of the page, click Save Changes.
The End