diff --git a/metagen.inc.php b/metagen.inc.php
index e1ff14b..0d7fd47 100644
--- a/metagen.inc.php
+++ b/metagen.inc.php
@@ -103,6 +103,11 @@ class mtgMetaInfo
     $this->units[$unit->object->getMetaId()] = $unit;
   }
 
+  function delUnit(mtgMetaInfoUnit $unit)
+  {
+    unset($this->units[$unit->object->getMetaId()]);
+  }
+
   function getUnits()
   {
     return $this->units;
@@ -152,6 +157,11 @@ abstract class mtgMetaUnit
     $this->tokens[$name] = $val;
   }
 
+  function delToken($name)
+  {
+    unset($this->tokens[$name]);
+  }
+
   function getToken($name)
   {
     return $this->hasToken($name) ? $this->tokens[$name] : null;