Fan Moving Averages with Average line is a moving average fan in the form of an oscillator in a separate window with the average line.
Oscillator values oscillate with the +1/-1 range

It has eight adjustable parameters:

• First MA period - first MA calculation period
• MA method - calculation method
  
• Applied price
• MA count - number of MAs in the fan
• Incremental method - method of incrementing MA period values:
• Addition
• Multiplication
• Coefficient of increment - increment ratio
• Smoothing period - middle line smoothing period
• Smoothing method - middle line calculation method