Update amagalma_Delete all envelope points inside Razor Edit areas (d…

…o not add edge points).lua

Razor Edit/amagalma_Delete all envelope points inside Razor Edit areas (do not add edge points).lua

@@ -1,18 +1,23 @@
 -- @description Delete all envelope points inside Razor Edit areas (do not add edge points)
 -- @author amagalma
--- @version 1.00
+-- @version 1.01
+-- @changelog Added support for Master Track
 -- @link https://forum.cockos.com/showthread.php?t=250759
 -- @donation https://www.paypal.me/amagalma
 -- @about Differs from the native action because it does not add edge points.
 
 
 local track_cnt = reaper.CountTracks(0)
-if track_cnt == 0 then return reaper.defer(function() end) end
-
 local envs, env_cnt = {}, 0
+local tracks = {}
 
 for tr = 0, track_cnt - 1 do
-  local track = reaper.GetTrack(0, tr)
+  tracks[tr+1] = reaper.GetTrack(0, tr)
+end
+tracks[track_cnt+1] = reaper.GetMasterTrack( 0 )
+
+for tr = 1, track_cnt + 1 do
+  local track = tracks[tr]
   local _, area = reaper.GetSetMediaTrackInfo_String(track, "P_RAZOREDITS", "", false)
   if area ~= "" then
     local arSt, arEn