Found in the manual:- a note at: 2.4.3.1 . I know how these things happen. You write a shed load of words and mean to fill in the blank later, when you find a noun , only you forget. Lets help out by guessing the missing words.
"The visibility of a track in the------------- has no effect on the visibility of the------------- for that track in the------------- which can be modified from the------------------- , also hiding a track does not affect its playback which can be controlled by either muting or deactivating it. "
I think the first one is “editor”.