Gets or sets "readonly" property of a track.
emr_track.readonly(track, readonly = NULL)track name
if 'NULL', return "readonlyness" of the track, otherwise sets it
None.
This function gets or sets "readonly-ness" of the track. If 'readonly' is 'NULL' the functions returns whether the track is R/O. Otherwise it sets "readonly-ness" to the value indicated by 'readonly'.
Logical tracks inherit their "readonly-ness" from the source physical tracks.
Overriding a track also overrides it's "readonly-ness", it's "readonly-ness" will persist when the track is no longer overridden