Creating Multi-Momentum-Indicator

[mast83]

Hi together,

I hope that somebody here in this Forum could help me regarding the Standard momentum indicator.
I tried to create a momentum indicator with at least three different momentum periods which are shown in a subwindow. When compiling attached file no of the three linecharts appears.
Idea behind this indicator is that a standard momentum indicator with another momentum indicator (via drag and drop) shows a different 100-line and I also saw that the lines moved to another value when sliding from left to right or vice versa.
I hope to get a solution for an indicator with fix values within the severals periods

Thank you very much for your help in advance.

Best regards
Marc