Script request: separate actions for "show/hide children of selected tracks" (41665)

[Gass n Klang]

hey guys,
I'd love to have a separate "show" and "hide" action that I can use instead of "mixer: show/hide children of selected tracks" (ID 41665). It has to be this behaviour (collapsing and uncollapsing folders in mcp instead of hiding) for me to work. I'd be super happy if someone could write these few lines for me. I need these actions to get my cycle actions (if condition) work.

[HurdyGuigui]

+1

[FeedTheCat]

Quickly put this together, but I think it should work.

reaper.Undo_BeginBlock()
for i = 0, reaper.CountSelectedTracks(0) - 1 do
    local track = reaper.GetSelectedTrack(0, i)
    local _, chunk = reaper.GetTrackStateChunk(track, '', false)
    local is_child_collapsed = chunk:match('\nBUSCOMP %d (%d) %d') == '1'
    if not is_child_collapsed then
        chunk = chunk:gsub('(\nBUSCOMP %d) (%d) (%d)', '%1 1 %3')
        reaper.SetTrackStateChunk(track, chunk, false)
    end
end
reaper.TrackList_AdjustWindows(false)
reaper.Undo_EndBlock('Hide children of selected tracks in mixer', -1)

reaper.Undo_BeginBlock()
for i = 0, reaper.CountSelectedTracks(0) - 1 do
    local track = reaper.GetSelectedTrack(0, i)
    local _, chunk = reaper.GetTrackStateChunk(track, '', false)
    local is_child_collapsed = chunk:match('\nBUSCOMP %d (%d) %d') == '1'
    if is_child_collapsed then
        chunk = chunk:gsub('(\nBUSCOMP %d) (%d) (%d)', '%1 0 %3')
        reaper.SetTrackStateChunk(track, chunk, false)
    end
end
reaper.TrackList_AdjustWindows(false)
reaper.Undo_EndBlock('Show children of selected tracks in mixer', -1)

[HurdyGuigui]

Amazing ! Thank you so much, it works like a charm !