B4J Question xChart: variable qty of lines

I do not really understand what exactly you want to do.
0..10, 10..20 and 20..30 what do these time periods represent?
- Does it mean that you want to watch during 10 seconds, dynamically, one of the three options ?
Not possible directly. You could have three xCharts one above the other and manually switch between them.
- Or does it mean that you want on the same chart the three possibilities ?
This is not possible.
- Or something else ?

Yes, i wanted to see all that showed now in these 3 screentshots:

Sorry, but this is not possible.