numTracks = RPR_CountSelectedTracks(0)
for TrIndex in range(0,numTracks - 1):
  tr = RPR_GetSelectedTrack(0,TrIndex)
  rc = RPR_TrackFX_GetFXName(tr, 0, "", 64)
  plugname = rc[3]
  #RPR_ShowConsoleMsg(plugname+'\n')
  if "JS: IX/Mixer_8xM-1xS" in plugname:
    # set volumes in ix mixer to rising values
    for x in range(0,8):
      basevolume=-48 + 48.0 / (numTracks - 1) * TrIndex
      paramval = basevolume + 24.0 / 7 * x
      RPR_TrackFX_SetParam(tr, 0, x, paramval);
      # set pans to decreasing values
      for x in range(0,8):
        panval=1.0 - 1.0 / 7*x
        RPR_TrackFX_SetParam(tr, 0, x + 8, panval);