ATR whether expressed in percent or not is nondirectional so:
LongEntrySignal = (ATRPercent(Main chart,ATRPercentLvlATRPrd1)[2] is above 0.1
and (LaguerreRSI(Subchart1, D1,0.8)[2] is falling));
ShortEntrySignal = (ATRPercent(Main chart,ATRPercentLvlATRPrd1)[2] is below 0.1
and (LaguerreRSI(Subchart1, D1,0.8)[2] is rising));
should be
LongEntrySignal = (ATRPercent(Main chart,ATRPercentLvlATRPrd1)[2] is above 0.1
and (LaguerreRSI(Subchart1, D1,0.8)[2] is falling));
ShortEntrySignal = (ATRPercent(Main chart,ATRPercentLvlATRPrd1)[2] is above 0.1
and (LaguerreRSI(Subchart1, D1,0.8)[2] is rising));