Hardcode multiple lineitems (array)

I'm trying to write multiple Currencies to a Netsuite Account. The salesorder has an array called Currency, that holds Currency records. And I would like to fill this list of currencies in a mapping.
Something like this:
{"internalId":"2", "internalid":"7"}

to

Currency[*].Currency

Anyone know how I would go about doing this?

This is the closest result I can get:
"Currency": {
"lines": [
{
"currency": "{\"1\",\"7\"}"
}
]
}

But obviously I would like

"Currency": {
"lines": [
{
"currency": "1"
},
{
"currency": "7"
},
]
}

Hello @marcopietersen,

I saw that you got a solution to this issue in a help ticket. In case others run into your issue, I'm posting the general idea behind the solution here.

The best way to map this information is to create a preMap hook script with an array of currencies. Then, you can map it against the Currency field in NetSuite.

Thanks!