diff --git a/src/zm_box.h b/src/zm_box.h
index 3432bacc5..fa377e593 100644
--- a/src/zm_box.h
+++ b/src/zm_box.h
@@ -43,7 +43,7 @@ public:
   inline Box()
   {
   }
-  inline Box( int p_size ) : lo( 0, 0 ), hi ( p_size-1, p_size-1 ), size( Coord::Range( hi, lo ) ) { }
+  explicit inline Box( int p_size ) : lo( 0, 0 ), hi ( p_size-1, p_size-1 ), size( Coord::Range( hi, lo ) ) { }
   inline Box( int p_x_size, int p_y_size ) : lo( 0, 0 ), hi ( p_x_size-1, p_y_size-1 ), size( Coord::Range( hi, lo ) ) { }
   inline Box( int lo_x, int lo_y, int hi_x, int hi_y ) : lo( lo_x, lo_y ), hi( hi_x, hi_y ), size( Coord::Range( hi, lo ) ) { }
   inline Box( const Coord &p_lo, const Coord &p_hi ) : lo( p_lo ), hi( p_hi ), size( Coord::Range( hi, lo ) ) { }
diff --git a/src/zm_config.cpp b/src/zm_config.cpp
index 4025b4f43..65a3f6591 100644
--- a/src/zm_config.cpp
+++ b/src/zm_config.cpp
@@ -215,6 +215,7 @@ ConfigItem::ConfigItem( const char *p_name, const char *p_value, const char *con
 
   accessed = false;
 }
+
 ConfigItem::ConfigItem( const ConfigItem &item ) {
   name = new char[strlen(item.name)+1];
   strcpy( name, item.name );
@@ -227,6 +228,17 @@ ConfigItem::ConfigItem( const ConfigItem &item ) {
 
   accessed = false;
 }
+void ConfigItem::Copy( const ConfigItem &item ) {
+  name = new char[strlen(item.name)+1];
+  strcpy( name, item.name );
+  value = new char[strlen(item.value)+1];
+  strcpy( value, item.value );
+  type = new char[strlen(item.type)+1];
+  strcpy( type, item.type );
+
+  //Info( "Created new config item %s = %s (%s)\n", name, value, type );
+  accessed = false;
+}
 
 ConfigItem::~ConfigItem() {
   delete[] name;
diff --git a/src/zm_coord.h b/src/zm_coord.h
index 5858cef23..9bf31144c 100644
--- a/src/zm_coord.h
+++ b/src/zm_coord.h
@@ -31,14 +31,13 @@ private:
   int x, y;
 
 public:
-  inline Coord() : x(0), y(0)
-  {
-  }
-  inline Coord( int p_x, int p_y ) : x(p_x), y(p_y)
-  {
-  }
-  inline Coord( const Coord &p_coord ) : x(p_coord.x), y(p_coord.y)
-  {
+  inline Coord() : x(0), y(0) { }
+  inline Coord( int p_x, int p_y ) : x(p_x), y(p_y) { }
+  inline Coord( const Coord &p_coord ) : x(p_coord.x), y(p_coord.y) { }
+  inline Coord &operator =( const Coord &coord ) {
+    x = coord.x;
+    y = coord.y;
+    return *this;
   }
   inline int &X() { return( x ); }
   inline const int &X() const { return( x ); }