Target namespace: http://schemas.microsoft.com/office/onenote/2009/internal/specific
The RgOutlineIndentDistance simple type specifies the indentation of outline elements (section 22.214.171.124). This value MUST be set.
rgIndents: An array of floating-point numbers that specifies the indentation distance, in half-inch increments, of each outline level in the outline. The first value specifies the indentation of outline elements at the first outline level, the second value specifies the indentation of outline elements at the second outline level, and so forth. This array MUST NOT contain more than 255 elements.