I need my activepieces.com problem solving!

Hi freelancers!
I have an issue connecting my plugnpaid.com webhook to google sheets using activepieces (AP)... here's the issue:

1. AP only allows for 1 row to be added to a google sheet with each webhook trigger. I need the addition of multiple rows as is possible in pabbly connect, I understand this requires a loop code to run through each of the numbered items ordered in my cart.

2. when a row is added to google sheets it always seems to add the row into the header. This is a recent development which I have no idea why.

I'm told this isn't a big job for someone who knows how to create the coding loop, I can provide code examples of the webhook and links to all knowledge bases etc.