If set, then when the user deletes or moves the background layer (Layer 0), the new background will inherit the Locked and Selectable properties of the old one (and vice versa).

public bool SwapBackgroundProps { get; set; }

Public Property SwapBackgroundProps As Boolean
	Get
	Set

public:
property bool SwapBackgroundProps {
	bool get ();
	void set (bool value);
}