In "Condition" the crossover is something that can be detected for a given candle, let's say for the current one. If you try to detect crossovers at the same time for all lines in the same candle, then you expect all crossovers to be true for the same candle. But this is not how the indicator works.
But you can check multiple lines with > or <. If line A is now above level 0, this means that in the past that line have crossed 0.
Here is more about crossovers - https://fxdreema.com/examples/#Crossover