Zoho Flow - How to consume subarray from webhook

I am trying to integrate my ecommerce cart system with Inventory using Flow by receiving a JSON webhook. Most things are pretty straight forward, however I'm trying to understand how to create a sales order from a transaction that contains multiple items as the items are contained in a subarray. Here is a snippet of the webhook I receive:

{
"webhookTrigger": {
"payload": {
"_embedded": {
"fx__customer": {
"date_created": null,
"password_hash_config": 8,
"last_name": "Last",
"last_login_date": null,
"tax_id": null,
"password_salt": null,
"password_hash_type": "phpass",
"forgot_password_timestamp": null,
"date_modified": null,
"is_anonymous": true,
"password_hash": "",
"id": ,
"first_name": "First",
"email": "customer@email.com",
"forgot_password": null
},
"fx__payments": [
{
"amount": 36.3,
"cc_exp_month": "01",
"paypal_payer_id": null,
"date_created": "2019-06-24T10:26:55-0700",
"gateway_type": "authorize",
"third_party_id": null,
"type": "plastic",
"cc_number_masked": "xxxxxxxxxxxx1111",
"cc_exp_year": 2021,
"cc_type": "Visa",
"date_modified": "2019-06-24T10:26:55-0700",
"purchase_order": null,
"processor_response": "",
"processor_response_details": null,
"fraud_protection_score": 0
}
],
"fx__items": [
{
"expires": 0,
"code": 1863,
"discount_details": null,
"is_future_line_item": false,
"subscription_frequency": null,
"_embedded": {
"fx__item_options": [
{
"weight_mod": 0,
"date_modified": null,
"date_created": null,
"name": "Color",
"price_mod": 0,
"value": "Forest Green"
}
],
},
"price": 28.95,
"delivery_type": "shipped",
"subscription_start_date": null,
"discount_name": null,
"base_price": 28.95,
"quantity_max": 0,
"parent_code": null,
"subscription_next_transaction_date": null,
"shipto": "Me",
"height": 0,
"image": "",
"quantity": 1,
"date_created": null,
"sub_token_url": null,
"length": 0,
"weight": 1,
"discount_type": null,
"url": "",
"subscription_end_date": null,
"date_modified": "2019-06-24T10:23:50-0700",
"quantity_min": 0,
"name": "Widget",
"width": 0,
"downloadable_url": null
}
],
"fx__shipments": [
{
"country": "US",
"shipping_service_id": 14,
"shipping_service_description": "USPS Priority Mail 2-Day",
"total_price": 36.3,
"address2": null,
"city": "Fourtown",
"address1": "123 Pionener Rd",
"date_created": "2019-06-24T10:26:55-0700",
"last_name": "Last",
"address_name": "Me",
"total_tax": 0,
"total_item_price": 28.95,
"date_modified": "2019-06-24T10:26:55-0700",
"phone": null,
"total_shipping": 7.35,
"company": null,
"region": "",
"postal_code": 55555,
"first_name": "First"
}
],
"fx__billing_addresses": [
{
"customer_postal_code": 55555,
"customer_country": "US",
"address2": null,
"city": "Fourtown",
"address1": "123 Pionener Rd",
"date_created": null,
"customer_phone": null,
"last_name": "Last",
"address_name": "Default Billing Address",
"date_modified": "2019-06-24T10:26:55-0700",
"company": null,
"region": "",
"first_name": "First"
}
]
},
"total_shipping": 7.35,
"total_future_item_price": 0,
"id": ,
"is_test": true,
"transaction_date": "2019-06-24T12:26:55-0500",
"store_id": ,
"total_future_shipping": 0,
"currency_symbol": "$",
"date_created": null,
"customer_first_name": "First",
"total_tax": 0,
"transaction_type": null,
"locale_code": "en_US",
"date_modified": "2019-06-24T10:26:55-0700",
"customer_email": "customer@email.com",
"data_is_fed": true,
"status": "approved"
}
}
}

So if I want the customer name I can use ${webhookTrigger.payload._embedded.fx__customer.first_name} to retrieve the first name. No problem there.

If I want to get the name of the first item I need to use ${webhookTrigger.payload._embedded.fx__items[0].name} by specifying the first position in the items array, but this will only ever retrieve the name of the first item. How do I write this so that I can get the item name for "n" items?

Thank you for your help!