KevinKun airtable extension

Hello friends
I am trying to record multiple rows at once in Airtable. It seems that with the KevinKunAirtable extension it can be done but I have spent several days trying without success.
These blocks work perfectly, but only record one row. I don’t see a way to record multiple rows at once.
Does anyone know how to do it?
Thanks in advance

Try like this. In order to work do not forget to check “Show List As Json” at Screen1 Properties panel.