The rendering of the ASN into XML is automatic, resulting in most of the controls in this section being automatically filled in by the tool in a fraction of a second. Given good ASN, there is no need for the user to ever edit these controls. Its primary purpose at this stage is more educational in nature. Users can examine how the ASN is broken down into leaves (a Mini-Edit term for one ASN production, which is part of a larger tree of such productions) and how the two languages map between each other. These controls can toggle along the tree displaying the data of each leaf in turn. The control buttons allow the tool to run first as a parser (putting the resulting tree on the clipboard) and then as a translator (building the equivalent XML from the parsed tree).