ごめん、動かなかったので直した
(
local numTVs = trackviews.numTrackViews()
for i = 1 to numTVs where trackviews.isOpen i do trackviews.close i
for i = numTVs to 1 by -1 do
(
local tvName = trackviews.getTrackViewName i
trackviews.delete tvName
)
)