dhtmlXtree: enableLoadingItem

Can you please explain what scnerio enableLoadingItem() is intended to be used for & how to use it in code (please provide sample code)?

I was hoping that this was a way to display a message while the tree loaded. But I am getting errors trying to use it.

To enable mode, dhtmlxtree_lf.js need to be included.
The mode enabled by

After such command, each time when you open item, and tree send request to server for additional info ( dynamical loading mode ) - text of opened item will be replaced with message defined in enableLoadingItem, and restored back after data from server loaded. Basically it add visual representation of data loading

>> a message while the tree loaded.
If you need to show a custom message you can use

       //code to show loading  message



       //code to hide loading message