diff --git a/Track.h b/Track.h
index caa0c2ab..ccecc6ea 100644
--- a/Track.h
+++ b/Track.h
@@ -303,6 +303,9 @@ public:
         for (TIsolated *iso : Isolated)
             iso->Modify(i, o); }; // dodanie lub odjęcie osi
     std::string RemoteIsolatedName();
+    void AddIsolated(TIsolated *iso) {
+        Isolated.push_back(iso);
+    }
     double WidthTotal();
     bool IsGroupable();
     int TestPoint( Math3D::vector3 *Point);
diff --git a/simulationstateserializer.cpp b/simulationstateserializer.cpp
index 342de759..2327bc71 100644
--- a/simulationstateserializer.cpp
+++ b/simulationstateserializer.cpp
@@ -68,6 +68,7 @@ state_serializer::deserialize_begin( std::string const &Scenariofile ) {
 	        std::string,
 	        deserializefunction> > functionlist = {
 	            { "area",        &state_serializer::deserialize_area },
+	            { "isolated",    &state_serializer::deserialize_isolated },
 	            { "assignment",  &state_serializer::deserialize_assignment },
 	            { "atmo",        &state_serializer::deserialize_atmo },
 	            { "camera",      &state_serializer::deserialize_camera },
@@ -149,6 +150,22 @@ state_serializer::deserialize_continue(std::shared_ptr<deserializer_state> state
 	return false;
 }
 
+void
+state_serializer::deserialize_isolated( cParser &Input, scene::scratch_data &Scratchpad ) {
+    // first parameter specifies name of parent piece...
+    auto token { Input.getToken<std::string>() };
+    auto *groupowner { TIsolated::Find( token ) };
+    // ...followed by list of its tracks
+    while( ( false == ( token = Input.getToken<std::string>() ).empty() )
+        && ( token != "endisolated" ) ) {
+        auto *track { simulation::Paths.find( token ) };
+        if( track != nullptr )
+            track->AddIsolated( groupowner );
+        else
+            ErrorLog( "Bad scenario: track \"" + token + "\" not found" );
+    }
+}
+
 void
 state_serializer::deserialize_area( cParser &Input, scene::scratch_data &Scratchpad ) {
     // first parameter specifies name of parent piece...
diff --git a/simulationstateserializer.h b/simulationstateserializer.h
index 82fc5638..a2043e41 100644
--- a/simulationstateserializer.h
+++ b/simulationstateserializer.h
@@ -50,6 +50,7 @@ private:
 // methods
     // restores class data from provided stream
     void deserialize_area( cParser &Input, scene::scratch_data &Scratchpad );
+    void deserialize_isolated( cParser &Input, scene::scratch_data &Scratchpad );
     void deserialize_assignment( cParser &Input, scene::scratch_data &Scratchpad );
     void deserialize_atmo( cParser &Input, scene::scratch_data &Scratchpad );
     void deserialize_camera( cParser &Input, scene::scratch_data &Scratchpad );