Confusion about MACD

Hi All,

When using MACD indicator, in the MT4 platform, I can only get a
histogram and one line. However, from a lot of readings, there are 2
lines and 1 histogram. How can I generate histogram with 2 lines?

There ya go

Also, the calculation in MT4's MACD is not strictly correct. More info here. There are other custom-made MACD indicators attached to ealier posts in this thread.

David