-- this needs to be called "Settings" and a global to work
 Settings = {}
 -- -10 to +10 ms jitter
 Settings.Frequency = 10
 -- -15 to +15 jitter
 Settings.Amplitude = 15
 SetSettings(Settings)
 -- anything using Settings needs to use it after "SetSettings"


for idx, action in ipairs(CurrentScript.actions) do
   -- check if action is selected
   if action.selected then
      action.pos = math.floor(action.pos + math.sin(idx*Settings.Frequency/100.0)*Settings.Amplitude)

      -- clamp position between 0 and 100
      action.pos = clamp(action.pos, 0, 100)
   end

   -- update progress bar every 100 actions
   if idx % 100 == 0 then
      -- SetProgress expects a number between 0 and 1
      SetProgress(idx / #CurrentScript.actions)
   end
end