diff --git a/src/CADShared/ExtensionMethod/DBDictionaryEx.cs b/src/CADShared/ExtensionMethod/DBDictionaryEx.cs
index 829b1ae9b5751da28ddb9335b6e18a956fe994e4..38c6b973cfc5311654d6e26a85e57b427ade7ae4 100644
--- a/src/CADShared/ExtensionMethod/DBDictionaryEx.cs
+++ b/src/CADShared/ExtensionMethod/DBDictionaryEx.cs
@@ -303,15 +303,17 @@ public static void SetValue(this DataCell cell, CellType type, object value)
     /// <param name="dict">字典</param>
     /// <param name="name">组名</param>
     /// <param name="ids">实体Id集合</param>
+    /// <param name="selectable">组内所有图元能否被一起选中</param>
+    /// <param name="description">编组的描述</param>
     /// <returns>编组Id</returns>
-    public static ObjectId AddGroup(this DBDictionary dict, string name, ObjectIdCollection ids)
+    public static ObjectId AddGroup(this DBDictionary dict, string name, ObjectIdCollection ids, bool selectable = true, string description = "")
     {
         if (dict.Contains(name))
             return ObjectId.Null;
 
         using (dict.ForWrite())
         {
-            Group g = new();
+            var g = new Group(description, selectable);
             g.Append(ids);
             dict.SetAt(name, g);
             var tr = DBTrans.GetTopTransaction(dict.Database);
@@ -326,14 +328,16 @@ public static ObjectId AddGroup(this DBDictionary dict, string name, ObjectIdCol
     /// <param name="dict">字典</param>
     /// <param name="name">组名</param>
     /// <param name="ids">实体Id集合</param>
+    /// <param name="selectable">组内所有图元能否被一起选中</param>
+    /// <param name="description">编组的描述</param>
     /// <returns>编组Id</returns>
-    public static ObjectId AddGroup(this DBDictionary dict, string name, IEnumerable<ObjectId> ids)
+    public static ObjectId AddGroup(this DBDictionary dict, string name, IEnumerable<ObjectId> ids, bool selectable = true, string description = "")
     {
         if (dict.Contains(name))
             return ObjectId.Null;
 
         using ObjectIdCollection idc = new(ids.ToArray()); //需要using吗? 暂无测试
-        return dict.AddGroup(name, idc);
+        return dict.AddGroup(name, idc, selectable, description);
     }
 
 
diff --git a/src/CADShared/ExtensionMethod/ObjectIdEx.cs b/src/CADShared/ExtensionMethod/ObjectIdEx.cs
index ba790c204c4e70baee870c99c3f675f581937883..25fdeb7a67b11ddfbcbf5d2110f1bf64d4c77192 100644
--- a/src/CADShared/ExtensionMethod/ObjectIdEx.cs
+++ b/src/CADShared/ExtensionMethod/ObjectIdEx.cs
@@ -14,7 +14,7 @@ public static class ObjectIdEx
     /// <param name="openMode">打开模式</param>
     /// <param name="openErased">是否打开已删除对象,默认为不打开</param>
     /// <param name="openLockedLayer">是否打开锁定图层对象,默认为不打开</param>
-    /// <returns>指定类型对象</returns>
+    /// <returns>与对象id对应的DBObject实例</returns>
     public static DBObject GetObject(this ObjectId id, OpenMode openMode = OpenMode.ForRead,
         bool openErased = false, bool openLockedLayer = false)
     {