RGVWEBPRO IDX is a simple plugin for Real Estate Websites that offer their visitors iFrame content from USAMLS.NET by Systems Engineering, Inc.. Simply input a respective shortcode in the WYSIWYG editor and update the search values via the Custom Fields area. The “names” and “values” must correspond with the input names and values on the USAMLS.NET search page. Example: To search by MLS number, place “item1” in the name and the MLS number in the value.