Also note that the duration of the ef-
fect matches the length of the clip to
which you applied the eﬀ ect.
The eﬀ ect (number of Avid video
sources) you selected when you added
the eﬀ ect directly reﬂ ects how many
video tracks (V1, V2, V3, etc.) are avail-
able in the Boris Track Media menu.