Having problem with standard version

I am not able to use tree.loadJSON,tree.setXMLAutoLoading etc… with the standard revision.
All methods required pro version.Can anyone help me in getting pro version or how to make the methods work?

Thanks

Both loadJSON and setXMLAutoLoading are provided with Standard edition.

Sample with dynamic loading:
dhtmlxTree/samples/12_loading_processing_data/13_tree_dyn_loading.html

The example of adding JSON data:
var data = {id:0, item:[{id:1,text:“item 1”},{id:2, text:“item 2”, item:[{id:“21”, text:“item 2 1”}]},{id:3,text:“item 3”}]}
tree.loadJSONObject(data);

loadJSON loads json data:
tree.loadJSON(url);

The PRO edition is provided with Commercial or Enterprise license:
dhtmlx.com/docs/products/dhtmlxT … l#licenses