deferred class
	EV_SELECTABLE

General
	cluster: vision2.interface.properties
	description: "Abstraction for objects that may be selected."
	keywords: "select, selected, selectable"

Ancestors
	EV_ANY

Queries
	data: ANY
	is_destroyed: BOOLEAN
	is_selectable: BOOLEAN
	is_selected: BOOLEAN

Commands
	copy (other: [like Current] EV_SELECTABLE)
	destroy
	enable_select
	set_data (some_data: [like data] ANY)