An XML document is organized as a tree of elements. When working on a large document you can collapse some elements leaving in the focus only the ones you need to edit. Expanding and collapsing works on individual elements: expanding an element leaves the child elements unchanged.
Folding of the XML Elements
To toggle the folded state of an
element click on the special mark displayed in the left part of the document editor next to
the start tag of that element or click on the action Toggle fold (Ctrl+Alt+Y) available from
the contextual menu
Other menu actions related to folding of XML elements are available from the contextual menu of the current editor:
You can use folding by clicking on the special marks displayed in the left part of the document editor.