{ "formtabs":[ {

"MIGX_id":12,
"caption":"\u041f\u0440\u043e\u043c\u043e\u043a\u043e\u0434\u044b",
"print_before_tabs":"0",
"fields":[
{
"MIGX_id":26,
"field":"promocode_title",
"caption":"\u041f\u0440\u043e\u043c\u043e\u043a\u043e\u0434",
"description":"",
"description_is_code":"0",
"inputTV":"",
"inputTVtype":"",
"validation":"",
"configs":"",
"restrictive_condition":"",
"display":"",
"sourceFrom":"config",
"sources":"",
"inputOptionValues":"",
"default":"",
"useDefaultIfEmpty":"0",
"pos":1
},
{
"MIGX_id":27,
"field":"promocode_discount",
"caption":"\u041f\u0440\u043e\u0446\u0435\u043d\u0442 \u0441\u043a\u0438\u0434\u043a\u0438 (\u0443\u043a\u0430\u0437\u044b\u0432\u0430\u0435\u0442 \u0431\u0435\u0437 \u0437\u043d\u0430\u043a\u0430 \u043f\u0440\u043e\u0446\u0435\u043d\u0442\u0430)",
"description":"",
"description_is_code":"0",
"inputTV":"",
"inputTVtype":"",
"validation":"",
"configs":"",
"restrictive_condition":"",
"display":"",
"sourceFrom":"config",
"sources":"",
"inputOptionValues":"",
"default":"",
"useDefaultIfEmpty":"0",
"pos":2
},
{
"MIGX_id":28,
"field":"promocode_date",
"caption":"\u0414\u0430\u0442\u0430 \u0434\u043e \u043a\u043e\u0442\u043e\u0440\u043e\u0433\u043e \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0442\u0435\u043b\u0435\u043d \u043f\u0440\u043e\u043c\u043e\u043a\u043e\u0434",
"description":"",
"description_is_code":"0",
"inputTV":"",
"inputTVtype":"date",
"validation":"",
"configs":"",
"restrictive_condition":"",
"display":"",
"sourceFrom":"config",
"sources":"",
"inputOptionValues":"",
"default":"",
"useDefaultIfEmpty":"0",
"pos":3
},
{
"MIGX_id":29,
"field":"products",
"caption":"\u041f\u0440\u043e\u0434\u0443\u043a\u0442\u044b (\u043f\u0443\u0441\u0442\u043e \u0435\u0441\u043b\u0438 \u0432\u0441\u0435 \u0442\u043e\u0432\u0430\u0440\u044b)",
"description":"",
"description_is_code":"0",
"inputTV":"",
"inputTVtype":"listbox-multiple",
"validation":"",
"configs":"",
"restrictive_condition":"",
"display":"",
"sourceFrom":"config",
"sources":"",
"inputOptionValues":"@EVAL return $modx->runSnippet('pdoPage', array('parents'=>4, 'element'=>'msProducts', 'tpl' => '@INLINE {$pagetitle}=={$id}', 'limit' => 0, 'outputSeparator'=>'||'));",
"default":"",
"useDefaultIfEmpty":"0",
"pos":4
},
{
"MIGX_id":30,
"field":"promocode_active",
"caption":"\u041f\u0440\u043e\u043c\u043e\u043a\u043e\u0434 \u0430\u043a\u0442\u0438\u0432\u0435\u043d?",
"description":"",
"description_is_code":"0",
"inputTV":"",
"inputTVtype":"checkbox",
"validation":"",
"configs":"",
"restrictive_condition":"",
"display":"",
"sourceFrom":"config",
"sources":"",
"inputOptionValues":"\u0414\u0430==1",
"default":"",
"useDefaultIfEmpty":"0",
"pos":5
}
],
"pos":1
}
],
"contextmenus":"",
"actionbuttons":"",
"columnbuttons":"",
"filters":"",
"extended":{
"migx_add":"",
"disable_add_item":"",
"add_items_directly":"",
"formcaption":"",
"update_win_title":"",
"win_id":"",
"maxRecords":"",
"addNewItemAt":"bottom",
"media_source_id":"",
"multiple_formtabs":"",
"multiple_formtabs_label":"",
"multiple_formtabs_field":"",

Может не будешь сюда свои портянки вставлять?