How to create a custom control?

To make a custom control you do the following

1. Make a subclass from a DialogControl subclass (DialogSelect for example)
2. register in the config under /modules/adminInterface/Config/controls
3. use the new control as all the others

To access the configuration settings use getConfigValue(name) To make a DropDownBox having special values you would do something like:

MySelect extends DialogSelect(){
     MySelect(...){
         super(..);
     }

setOptions(){
         for each node found
             add option to the control;
     }
 }