SetOutlineLvl
Sets the outline level for the specified properties.
Inherited from ApiParaPr.SetOutlineLvl.
Example
Assign an outline level to a paragraph to control its position in the document structure in a document.
// How do I set the outline level of a paragraph in a document?
// Change a paragraph's heading depth so it appears correctly in the navigation panel.
const doc = Api.GetDocument();
const paragraph = doc.GetElement(0);
const paraPr = paragraph.GetParaPr();
const levelBefore = paraPr.GetOutlineLvl();
paraPr.SetOutlineLvl(8);
const levelAfter = paraPr.GetOutlineLvl();
let text = 'Outline level (index) for this paragraph is currently set to ' + levelAfter;
text += ',\nbut originally was set to ' + levelBefore;
paragraph.AddText(text);