Install MerchWriter from the chrome web store.
Register for a free or premium license and copy the key to the configuration section under Gumroad License.
Copy templates to your www.airtable.com account. If you do not have one you can create an account for free.
Select the template base you copied (MerchWRITER by default) and copy the ID to the configuration section under Template Base.
Generate an Airtable API key and copy the key to the configuration section under Airtable API Key.
You are complete with the setup, contact us if you have any questions.