isc.RestDataSource data removal - how to change HTTP method from POST to DELETE

Hi,

Currently I'm trying to integrate SmartClient Client v9.0 with REST web service. On http://www.smartclient.com/docs/9.0/a/system/reference/SmartClient_Explorer.html#restEditSave there is a nice example.

My question is how to enforce isc.RestDataSource to use DELETE HTTP method when isc.ListGrid.removeData method is called? By default post method is used.