A Virtual subject is made up of one or more real subjects from a source
Editor Properties: (see get_editor_property/set_editor_property)
frame_translators (Array(LiveLinkFrameTranslator)): [Read-Write] List of available translator the subject can use.
rebroadcast_subject (bool): [Read-Write] If enabled, rebroadcast this subject
subjects (Array(LiveLinkSubjectName)): [Read-Write] Names of the real subjects to combine into a virtual subject