Is it possible to change the Price book in Quote object? Please explain with proper reason.

Hi,

With the help of following steps you can enable Quotes in Salesforce:

1. From Setup, enter Quote in the Quick Find box, then select Quote Settings (Lightning Experience) or Quotes Settings (Salesforce Classic).
2. If Quotes are not enabled then, select the option for enabling quotes.
3. To display the Quotes related list on the standard opportunity page layout, select all the Opportunity Layout displayed.
4. To add the Quotes related list to all opportunity page layouts that users have customized, select Append to users’ personal related list customization.
5. Save your changes.