diff --git a/MP4/box_abst.cpp b/MP4/box_abst.cpp
index 6e264a1b..607b9d12 100644
--- a/MP4/box_abst.cpp
+++ b/MP4/box_abst.cpp
@@ -11,3 +11,73 @@ Box_abst::~Box_abst() {
 Box * Box_abst::GetBox() {
   return Container;
 }
+
+void Box_abst::SetProfile( uint8_t Profile ) {
+  curProfile = Profile;
+}
+
+void Box_abst::SetLive( bool Live ) {
+  isLive = Live;
+}
+
+void Box_abst::SetUpdate( bool Update ) {
+  isUpdate = Update;
+}
+
+void Box_abst::SetTimeScale( uint32_t Scale ) {
+  curTimeScale = Scale;
+}
+
+void Box_abst::SetMediaTime( uint32_t Time ) {
+  curMediaTime = Time;
+}
+
+void Box_abst::SetSMPTE( uint32_t Smpte ) {
+  curSMPTE = Smpte;
+}
+
+void Box_abst::SetMovieIdentfier( std::string Identifier ) {
+  curMovieIdentifier = Identifier;
+}
+
+void Box_abst::SetDRM( std::string Drm ) {
+  curDRM = Drm;
+}
+
+void Box_abst::SetMetaData( std::string MetaData ) {
+  curMetaData = MetaData;
+}
+
+void Box_abst::AddServerEntry( std::string Url, uint32_t Offset ) {
+  if(Offset >= Servers.size()) {
+    Servers.resize(Offset+1);
+  }
+  Servers[Offset].ServerBaseUrl = Url;
+}
+
+void Box_abst::AddQualityEntry( std::string Quality, uint32_t Offset ) {
+  if(Offset >= Qualities.size()) {
+    Qualities.resize(Offset+1);
+  }
+  Qualities[Offset].QualityModifier = Quality;
+}
+
+void Box_abst::AddSegmentRunTable( Box * newSegment, uint32_t Offset ) {
+  if( Offset >= SegmentRunTables.size() ) {
+    SegmentRunTables.resize(Offset+1);
+  }
+  if( SegmentRunTables[Offset] ) {
+    delete SegmentRunTables[Offset];
+  }
+  SegmentRunTables[Offset] = newSegment;
+}
+
+void Box_abst::AddFragmentRunTable( Box * newFragment, uint32_t Offset ) {
+  if( Offset >= FragmentRunTables.size() ) {
+    FragmentRunTables.resize(Offset+1);
+  }
+  if( FragmentRunTables[Offset] ) {
+    delete FragmentRunTables[Offset];
+  }
+  FragmentRunTables[Offset] = newFragment;
+}
diff --git a/MP4/box_abst.h b/MP4/box_abst.h
index 289f43cf..e6ec5985 100644
--- a/MP4/box_abst.h
+++ b/MP4/box_abst.h
@@ -15,7 +15,19 @@ class Box_abst {
     Box_abst( );
     ~Box_abst();
     Box * GetBox();
-
+    void SetProfile( uint8_t Profile = 0 );
+    void SetLive( bool Live = true );
+    void SetUpdate( bool Update = false );
+    void SetTimeScale( uint32_t Scale = 1000 );
+    void SetMediaTime( uint32_t Time = 0 );
+    void SetSMPTE( uint32_t Smpte = 0 );
+    void SetMovieIdentfier( std::string Identifier = "" );
+    void SetDRM( std::string Drm = "" );
+    void SetMetaData( std::string MetaData = "" );
+    void AddServerEntry( std::string Url = "", uint32_t Offset = 0 );
+    void AddQualityEntry( std::string Quality = "", uint32_t Offset = 0 );
+    void AddSegmentRunTable( Box * newSegment, uint32_t Offset = 0 );
+    void AddFragmentRunTable( Box * newFragment, uint32_t Offset = 0 );
   private:
     uint8_t curProfile;
     bool isLive;