This element is an identifier that specifies whether a feature is an I = implicit feature, K = head option, or P = position feature. It serves the purpose of controlling the processing method on head or position level, features designated with a "P" must, according to the manufacturer, not be processed on head level. Features designated with an "I" are visible and result implicitly from other features. |
D string P [IKP] M [1:1] |