diff --git a/src/io/piconnection.cpp b/src/io/piconnection.cpp
index 5cc23bde..eb22186a 100755
--- a/src/io/piconnection.cpp
+++ b/src/io/piconnection.cpp
@@ -463,6 +463,44 @@ PIPacketExtractor * PIConnection::addFilter(const PIString & name_, const PIStri
 }
 
 
+PIPacketExtractor * PIConnection::addFilter(PIPacketExtractor * filter, const PIString & full_path) {
+	PIString fp(PIIODevice::normalizeFullPath(full_path));
+	Extractor * e = 0;
+	if (full_path.isEmpty()) return (e == 0 ? 0 : e->extractor);
+	PIIODevice * dev = deviceByFullPath(fp);
+	PIPacketExtractor * pe(0);
+	if (extractors.value(full_path) != 0) pe = extractors.value(full_path)->extractor;
+	if (pe != 0) dev = pe;
+	if (dev == 0) {
+		piCoutObj << "\"addFilter\" error: no such device \"" << full_path << "\"!";
+		return 0;
+	}
+	if (e == 0) {
+		e = new Extractor();
+		extractors[filter->name()] = e;
+	}
+	if (e->extractor == 0) {
+		e->extractor = filter;
+		e->extractor->setThreadedReadData(new PIPair<PIConnection * , PIString>(this, filter->name()));
+		__device_pool__->lock();
+		if (diags_.value(e->extractor, 0) == 0) {
+			PIDiagnostics * d = new PIDiagnostics(false);
+			d->setInterval(10.);
+			diags_[e->extractor] = d;
+			CONNECTU(d, qualityChanged, this, diagQualityChanged);
+		}
+		__device_pool__->unlock();
+		CONNECT2(void, uchar * , int, e->extractor, packetReceived, this, packetExtractorReceived)
+	}
+	if (!e->devices.contains(dev)) {
+		bounded_extractors[dev] << e->extractor;
+		//if (PIString(dev->className()) == "PIPacketExtractor") dev->setThreadSafe(false);
+		e->devices << dev;
+	}
+	return e->extractor;
+}
+
+
 bool PIConnection::removeFilter(const PIString & name_, const PIString & full_path) {
 	PIString fp(PIIODevice::normalizeFullPath(full_path));
 	Extractor * p = extractors.value(name_.trimmed());
diff --git a/src/io/piconnection.h b/src/io/piconnection.h
index 6606cc0d..c83baec0 100755
--- a/src/io/piconnection.h
+++ b/src/io/piconnection.h
@@ -95,6 +95,12 @@ public:
 	
 	//! Add filter with name "name" to device "dev"
 	PIPacketExtractor * addFilter(const PIString & name, const PIIODevice * dev, PIPacketExtractor::SplitMode mode = PIPacketExtractor::None) {return addFilter(name, devFPath(dev), mode);}
+
+	//! Add filter with "filter" to device "dev"
+	PIPacketExtractor * addFilter(PIPacketExtractor * filter, const PIString & full_path_name);
+
+	//! Add filter with "filter" to device "dev"
+	PIPacketExtractor * addFilter(PIPacketExtractor * filter, const PIIODevice * dev) {return addFilter(filter, devFPath(dev));}
 	
 	/*! \brief Remove from filter with name "name" device with full path "full_path_name" or filter "full_path_name"
 	 * \details If there is no devices bounded to this filter, it will be removed. Returns if device was removed */