Correction of indicator

I need a quick correction of an indicator. The indicator should look like in the binning of the picture, but then suddenly stops , when it comes close to the acutal time.

I just modified an existing indicator, with lines of another indicator.

I have added comments in the code to the lines where I added my part.

The indicator should work correctly on charts and in visual mode.

Should be easy done for someone who is fit in mql5.