Data configuration for Create, update and delete record

I have watched all the videos on how to set up the REST-API integration but nobody has continued to create/POST, update/PUT and DELETE record configuration. I am trying to configure these for my Airtable API. Please could somebody provide clear instructions or a link to a video for this. I am not a developer and so I really do need step by step instructions.

Some resources to check before you post:

AppGyver Academy: SAP AppGyver Quick-Start

Troubleshooting FAQ: SAP AppGyver FAQ