This window helps the user to operate with XML document structure:
There are three type of nodes: mandatory , optional and group of nodes .
The window has two panels: nodes tree at the left side and attribute editor at the right. The right panel shows attribute list for the node currently selected in the tree.
The node tree has the context menu that helps to access local tree functions like copy selected node name.
The attribute list has the context menu that helps to access local functions like copy attribute name.