After creating the metafield definitions and pinning them, you may notice the metafields have been added to the parts of your store where it belongs. Now it is time to add values to the collection metafields which can edit the Collection Content and template. 

Step to add values to collection metafields 

Step 1: From the Shopify store admin, go to Products > Collections.

Step 2: Click on any Collection.

E.g. Collection > Insta Followers

Step 3: Enter the value in the metafields. 

Step 4: Save the changes.

Result the Collection Content/ Template: