diff --git a/GBase/GBaseTable.cs b/GBase/GBaseTable.cs
index 887f8d8..92fa996 100644
--- a/GBase/GBaseTable.cs
+++ b/GBase/GBaseTable.cs
@@ -96,7 +96,7 @@ namespace GBase
         /// </summary>
         /// <param name="column">The given <see cref="IGBaseColumn"/></param>
         /// <returns>True if successful, false if not</returns>
-        public bool AddColumn(IGBaseColumn column)
+        public bool AddColumn(IGBaseColumn column) //TODO: if a column is added, it has to be added to every entry file as well
         {
             if (Columns.Contains(column))
                 return false;
@@ -110,7 +110,7 @@ namespace GBase
         /// </summary>
         /// <param name="column">The given <see cref="IGBaseColumn"/></param>
         /// <returns>True if successful, false if not</returns>
-        public bool RemoveColumn(IGBaseColumn column)
+        public bool RemoveColumn(IGBaseColumn column) //TODO: if a column is removed, it has to be removed from every entry file as well
         {
             if (!Columns.Contains(column))
                 return false;