MongoDB - Is there a way to insert more than 1 document at 1 time

Hi.
Is there a way to insert more than 1 documents at one time?
This is example of my flow for inserting 1 document per trip (from function node to mongodb out node).

[ { "id": "ab1293da47f335a6", "type": "inject", "z": "e4313b973576809c", "name": "insert", "props": [ { "p": "payload" } ], "repeat": "", "crontab": "", "once": false, "onceDelay": 0.1, "topic": "", "payload": "", "payloadType": "date", "x": 90, "y": 920, "wires": [ [ "60bbdc50c9cb93c2" ] ] }, { "id": "60bbdc50c9cb93c2", "type": "function", "z": "e4313b973576809c", "name": "insert function", "func": "let collection = 'daily-sale';\nlet payload = {\n 'day':1,\n 'sale': 1000,\n 'usage': 1000,\n 'collection': collection\n}\n\nlet obj = Object.assign({},payload);\nmsg.payload = obj;\nreturn msg.payload;", "outputs": 1, "timeout": 0, "noerr": 0, "initialize": "", "finalize": "", "libs": [], "x": 260, "y": 920, "wires": [ [ "886a25611356b391" ] ] }, { "id": "886a25611356b391", "type": "mongodb out", "z": "e4313b973576809c", "mongodb": "2c97b2ee28fbe18e", "name": "mongodb", "collection": "", "payonly": false, "upsert": true, "multi": false, "operation": "insert", "x": 440, "y": 920, "wires": [] }, { "id": "2c97b2ee28fbe18e", "type": "mongodb", "hostname": "mongodb", "topology": "direct", "connectOptions": "", "port": "27017", "db": "db", "name": "" } ]

My objective is to reduce resource usage by using only 1 connection to mongodb to insert multiple documents at one time.
Thanks.

No source file or test is named. Start with the mongodb out node configuration shown in the flow, especially its insert operation and multi option, and trace how the incoming payload is passed to MongoDB. Done means the node can insert multiple documents from one message while reusing a single MongoDB connection.