I need an indicator of the moving average difference of i and i-1

Hello. I would like to request the development of an indicator with the following characteristics:

- Plotted in a window below the graph in the form of a histogram;

- It will be the moving average of the average price of the current position minus the same moving average of the previous position.

RES = AMM (i) - AMM (i-1)

RES = result

AMM = arithmetic moving average

- The goal is to work with arithmetic averages from 5 to 15 periods, but I would like to be able to choose the period and type (arithmetic or exponential).

Obs: I use the graph of Renko RenkoMT5.pt-BR in the mini index. I don't know if that interferes with anything.

Thank you.