Title heading text can be updated from Shopify admin, Click on Sales Channel → Online Store → Customization → In Home Page drop down select Products → Click on Default Product → In APPS click on Frequently bought block → […]

To Enable/Disable Frequently Bought Together section you need to follow below steps:

Manual Process
To Enable/Disable you have to go to Bundle → Upsell App Dashboard, then go to FBT Widget → Click Enable Block → Redirected to the theme editor page […]

For the offer widget to visible in the product page, the following steps are required:

1. The app has to be enabled.
2. The product page you are viewing should have a corresponding offer setup.
3. The widget(section) position should be set up […]

To assign Frequently Bought Together products from the product admin page:

Go to Products in shopify admin → Click on Product in which you want to apply a Frequently Bought Together → Scroll down the product page you will see the […]

1. In Shopify Admin Navigate to the Bundle & Upsell App.
2. Select Frequently Bought Together.
3. Click on Create FBT.
4. Add products you wish to assign Frequently Bought Together products.
5. The form will appear with the main product; click on Assign More FBT Product.
6. Add Frequently Bought […]