MACD MOMENTUM STRATEGY

Hey,
First of I'm not so familiar with Pine Editor, yet.
But a do need some help with a trick thing I*ve been working on.
As you can see I*ve merge the MACD and the MOMENTUM indicators in the same "chart" this have been working pretty well for me as a trading strategy. But now a chat tho create a real strategy with Pine Editor based on the same data. The thing is that I can't seem tho get the MOMENTUM indicator to and the MACD indicator in the same (different) scale in my strategy as when I merge them.
I suspect this got something to do with my chose of source för the MOMENTUM indicator, but I'm not 100.
I would be grateful for all kinds of feedback and tips for a solutions on this.
Thanks.