diff --git a/frontend/public/lsf/lsf.html b/frontend/public/lsf/lsf.html
index b7f3d2d..5d7f846 100644
--- a/frontend/public/lsf/lsf.html
+++ b/frontend/public/lsf/lsf.html
@@ -9,9 +9,11 @@
       body {
         height: 100%;
         margin: 0;
+        overflow: hidden;
       }
       #label-studio {
         height: 100vh;
+        overflow: auto;
       }
     </style>
 
diff --git a/runtime/datamate-python/app/module/annotation/schema/template.py b/runtime/datamate-python/app/module/annotation/schema/template.py
index 27bd770..e82fec0 100644
--- a/runtime/datamate-python/app/module/annotation/schema/template.py
+++ b/runtime/datamate-python/app/module/annotation/schema/template.py
@@ -14,6 +14,8 @@ class LabelDefinition(BaseModel):
     options: Optional[List[str]] = Field(None, description="选项列表（用于choices类型）")
     labels: Optional[List[str]] = Field(None, description="标签列表（用于rectanglelabels等类型）")
     required: bool = Field(False, description="是否必填")
+    choice: Optional[str] = Field(None, description="Choices 选择模式: single/multiple")
+    show_inline: Optional[bool] = Field(None, alias="showInline", description="Choices 是否行内显示")
     description: Optional[str] = Field(None, description="标签描述")
     
     model_config = ConfigDict(populate_by_name=True)
diff --git a/runtime/datamate-python/app/module/annotation/service/editor.py b/runtime/datamate-python/app/module/annotation/service/editor.py
index 749ea71..ac04257 100644
--- a/runtime/datamate-python/app/module/annotation/service/editor.py
+++ b/runtime/datamate-python/app/module/annotation/service/editor.py
@@ -251,6 +251,18 @@ class AnnotationEditorService:
             if not isinstance(stored.get("id"), int):
                 stored["id"] = self._make_ls_annotation_id(project_id, file_id)
             task["annotations"] = [stored]
+        else:
+            # 提供一个空 annotation，避免前端在没有选中 annotation 时无法产生 result
+            empty_ann_id = self._make_ls_annotation_id(project_id, file_id)
+            task["annotations"] = [
+                {
+                    "id": empty_ann_id,
+                    "task": ls_task_id,
+                    "result": [],
+                    "created_at": datetime.utcnow().isoformat() + "Z",
+                    "updated_at": datetime.utcnow().isoformat() + "Z",
+                }
+            ]
 
         return EditorTaskResponse(
             task=task,
diff --git a/runtime/datamate-python/app/module/annotation/service/template.py b/runtime/datamate-python/app/module/annotation/service/template.py
index d2fa52d..61abeb5 100644
--- a/runtime/datamate-python/app/module/annotation/service/template.py
+++ b/runtime/datamate-python/app/module/annotation/service/template.py
@@ -35,8 +35,20 @@ class AnnotationTemplateService:
             Label Studio XML字符串
         """
         tag_config = LabelStudioTagConfig()
+        control_types = tag_config.get_control_types()
         xml_parts = ['<View>']
         
+        def normalize_control_type(raw: Optional[str]) -> str:
+            if not raw:
+                return "Choices"
+            if raw in control_types:
+                return raw
+            raw_lower = raw.lower()
+            for ct in control_types:
+                if ct.lower() == raw_lower:
+                    return ct
+            return raw
+
         # 生成对象定义
         for obj in config.objects:
             obj_attrs = [
@@ -47,16 +59,17 @@ class AnnotationTemplateService:
         
         # 生成标签定义
         for label in config.labels:
-            label_attrs = [
-                f'name="{label.from_name}"',
-                f'toName="{label.to_name}"'
-            ]
+            label_attrs = [f'name="{label.from_name}"', f'toName="{label.to_name}"']
             
             # 添加可选属性
             if label.required:
                 label_attrs.append('required="true"')
             
-            tag_type = label.type.capitalize() if label.type else "Choices"
+            tag_type = normalize_control_type(label.type)
+            if tag_type == "Choices" and label.choice:
+                label_attrs.append(f'choice="{label.choice}"')
+            if tag_type == "Choices" and label.show_inline is not None:
+                label_attrs.append(f'showInline="{"true" if label.show_inline else "false"}"')
             
             # 检查是否需要子元素
             if label.options or label.labels: