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When working with a large document, the folding support in Oxygen XML Editor can be used to collapse some element content leaving only those that you need to edit in focus. Expanding and collapsing works on individual elements. Expanding an element leaves the child elements unchanged.

By default, the folding feature is enabled in Oxygen XML Editor, but it can be disabled in the Text preferences page with the Enable folding option.

Figure 1. Folding of XML Elements in Text Mode

The fact that the folds are persistent is a unique feature of Oxygen XML Editor. The next time you open the document the folds are restored to its last state.

Folding Actions in Text Mode

Element folds are marked with a small triangle (/) in the left stripe. To toggle the fold, simply click the icon. Also, if you right-click the icon, the following actions are available:

Collapse Other Folds (Ctrl + NumPad/ (Command + NumPad/ on OS X))
Folds all the elements except the current element.
Collapse Child Folds (Ctrl + NumPad. (Command + NumPad. on OS X))
Folds the child elements that are indented one level inside the current element.
Expand Child Folds
Unfolds all child elements of the currently selected element.
Expand All (Ctrl + NumPad* (Command + NumPad* on OS X))
Unfolds all elements in the current document.

For more information about the folding support in Oxygen XML Editor, watch our video demonstration: