Constant is a transform that produces constant XML document given any input document or signal. A constant must be custom configured with an XML document.
A constant is configured by opening its component editor. Elements, attributes, or text can be added to the constant by dragging icons from the menu bar into the document area. Names of elements and attributes and the values of attributes and text can be changed by clicking over the name or value and then modifying the value. Elements, attributes, and text can be removed by selecting the element attribute or text and then clicking the delete button. Elements, attributes, and text can be rearranged by drag within the document area.
A constant can also be configured by opening an xml document using the file open button on the menu bar or by drag and drop of an xml file from the operation system window.