In the application of this Act to Scotland, any reference to an interest in possession in settled property is a reference to an interest of any kind under a settlement by virtue of which the person in right of that interest is entitled to the enjoyment of the property or would be so entitled if the property were capable of enjoyment, including an interest of an assignee under an assignation of an interest of any kind (other than a reversionary interest) in property subject to a proper liferent; and the person in right of such an interest at any time shall be deemed to be entitled to a corresponding interest in the whole or any part of the property comprised in the settlement.