{ 
  "FormSubform_Form_PrimaryKey_Cust": {
    "table":"cust",
    "layout":"form",
    "onecolumn":true,
    "caption":["Customer","Customers"],
    "fields":[
      {"name":"cust_name","caption":"Name"},
      {"name":"cust_sts","caption":"Status"},
      {"control": "subform","target": "FormSubform_Form_PrimaryKey_CustExt","actions":"BIU"}
    ]
  },
  "FormSubform_Form_PrimaryKey_CustExt": {
    "table":"cust_ext",
    "layout":"form",
    "onecolumn":true,
    "popup": [500,250],
    "caption":["Information","Information"],
    "fields":[
      {"name":"cust_ext_desc","caption":"Description","control":"textarea"}
    ]
  }
}