Hello,
Having seen @dannyt and @eis_os being discussing flying junction helper warmly, I pause my elevated station work and joined the research (or, the race) (then discovered @kaleut1988 too)
So after one day's work, the first result seems not bad, now I have already:
1. 1 ~ n tracks for both upper level and lower level, for the moment n = 6
2. adjustement of crossing angle from 5° to 89° with step 1°
3. Step-like bridge with options to have span of 1, 2 or all tracks.(have never find bridge span over 3 tracks in real life, however the in-game multi-track catenary make it look bad)
The next target is to add positive/negative curves for both ends and levels, I think it's very important (look at Zürich HB). That means lot's of math work for me
I will add slope and base height adjustment too.