Import multiple line items to NetSuite transactions/events

We are looking to import multiple ID's into the attendees send invitation line items of an event.

Is it possible to add multiple line items from a single import, thus only generating a single event with multiple attendees?

We have referenced the following article but it looks like a single line item.
https://docs.celigo.com/hc/en-us/articles/360052710532-Import-NetSuite-line-items

It is for sure possible to create records in NetSuite that contain multiple line items from a single import, and at a very high level this is just a simple list mapping. I would recommend attending office hours or contacting support to get some assistance. I imagine there are examples in the help center as well where you can see multiple line items being mapped, but you would need to search around. Hope this helps!

Knowing it is possible is the biggest first step! Thank you Scott.