Metatrader 4 version of the indicator published here : Limit channels
For details check the link above

DMH
Directional Movement using Hann windowing - metatrader 4 version
Trailing Step Function
This Is Just A Normal Trailing Step Function.
Show Orders History On Chart
Show Orders History On Chart
Limit channels - with states
Limit channels - with states - metatrader 4 version