{ 
  "GridBasic_ExtendedProperties": {
    "table":"cust",
    "layout":"grid", 
    "title":"All Customers",
    "caption":["Customer","Customers"],
    "actions":"B", 
    "roles": {"C_B":"B","C_X":"*"},
    "sort":["^cust_name"],
    "buttons":[{"link":"insert:Cust"}],
    "fields":[
      {"name":"cust_id","type":"bigint","actions":"B","key":1,"caption": "ID"},
      {"name":"cust_name","type":"varchar","length":"50","caption":"Customer","caption_ext": "Customer Name","actions":"B","link":"update:Cust"}
    ]
  }
}