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#include <Trade\Trade.mqh>
CTrade trade;

input double StandardTrailPips = 10.0;
input double AggressiveTrailPips = 3.0;

void OnTick()
{
    bool allowed = IsTradingAllowed();
    
    // Always manage open positions
    ManageTrailingStops(allowed);
    
    // Gatekeeper for new entries
    if(!allowed) return;
    
    // Entry logic...
}

void ManageTrailingStops(bool isTradingAllowed)
{
    double activeTrail = isTradingAllowed ? StandardTrailPips : AggressiveTrailPips;
    double point = SymbolInfoDouble(_Symbol, SYMBOL_POINT);
    double trailDistance = activeTrail * 10 * point; // Assuming 5-digit broker

    for(int i = PositionsTotal() - 1; i >= 0; i--)
    {
        ulong ticket = PositionGetTicket(i);
        if(PositionGetString(POSITION_SYMBOL) != _Symbol) continue;
        
        double currentStop = PositionGetDouble(POSITION_SL);
        double currentTakeProfit = PositionGetDouble(POSITION_TP);
        long type = PositionGetInteger(POSITION_TYPE);
        
        if(type == POSITION_TYPE_BUY)
        {
            double currentBid = SymbolInfoDouble(_Symbol, SYMBOL_BID);
            double newStop = currentBid - trailDistance;
            
            if(currentStop == 0 || newStop > currentStop)
            {
                trade.PositionModify(ticket, newStop, currentTakeProfit);
            }
        }
        else if(type == POSITION_TYPE_SELL)
        {
            double currentAsk = SymbolInfoDouble(_Symbol, SYMBOL_ASK);
            double newStop = currentAsk + trailDistance;
            
            if(currentStop == 0 || newStop < currentStop)
            {
                trade.PositionModify(ticket, newStop, currentTakeProfit);
            }
        }
    }
}