Just started using Zoho Subscription....I am trying to setup a Zapier integration with Google Sheets that will create a row inside a Google Sheet each time a new subscription is created. I have got the integration working and it is creating a new row each time....I now want to include some custom fields (I think ?) for each new subscription that will also be written to the Google Sheet. Those fields are 

Product: Share Trade Tracker

Version: 3

For example...I have found how to create custom fields via the Preferences, but they are not appearing in the selected fields on the Zapier integration to include in the new Google Sheet row...

Any help appreciated...