Inline User Grid

Paste into Record Related Components of a GM grid — this is what Config. Wiz → Inline Components generates. See Grid - Inline Components.

[
    {
        "component": "gmpkg:UserDataGridComponent",
        "attributes": {
            "userGridId": "Contacts",
            "displayLabel": "Contacts",
            "adminFilter": "{\"and\":[{\"AccountId\":{\"operator\":\"=\",\"value\":\"$recordId\"}}]}"
        }
    }
]