diff --git a/RLA/easy_log/tester.py b/RLA/easy_log/tester.py
index 66f7807..ac36bc4 100644
--- a/RLA/easy_log/tester.py
+++ b/RLA/easy_log/tester.py
@@ -113,7 +113,7 @@ def __init__(self):
 
     @deprecated_alias(task_name='task_table_name', private_config_path='rla_config', log_root='data_root')
     def configure(self, task_table_name: str, rla_config: Union[str, dict], data_root: str,
-                  ignore_file_path: Optional[str] = None, run_file: Optional[str] = None,
+                  ignore_file_path: Optional[str] = None, run_file: Union[str, List[str]] = None,
                   is_master_node: bool = False, code_root: Optional[str] = None):
         """
         The function to configure your exp_manager, which should be run before your experiments.
@@ -131,7 +131,7 @@ def configure(self, task_table_name: str, rla_config: Union[str, dict], data_roo
         :type ignore_file_path: str
         :param run_file: If you have extra files out of your codebase (e.g., some scripts to run the code), you can pass it to the run_file.
         Then we will backup the run_file too.
-        :type run_file: str
+        :type run_file: str or list
         :param is_master_node: In "distributed training & centralized logs" mode (By set SEND_LOG_FILE in rla_config.yaml to True),
         you should mark the master node (is_master_node=True) to collect logs of the slave nodes (is_master_node=False).
         :type is_master_node: bool
@@ -502,18 +502,25 @@ def get_ignore_files(self, src, names):
 
     def __copy_source_code(self, run_file, code_dir):
         import shutil
+        def _copy_run_file(run_file, code_dir):
+            if type(run_file) == list:
+                for file_name in run_file:
+                    shutil.copy(file_name, code_dir)
+            else:
+                shutil.copy(run_file, code_dir)        
         if self.private_config["PROJECT_TYPE"]["backup_code_by"] == 'lib':
             assert os.listdir(code_dir) == []
             os.removedirs(code_dir)
             shutil.copytree(osp.join(self.project_root, self.private_config["BACKUP_CONFIG"]["lib_dir"]), code_dir)
             assert run_file is not None, "you should define the run_file in lib backup mode."
-            shutil.copy(run_file, code_dir)
+            _copy_run_file(run_file, code_dir)
         elif self.private_config["PROJECT_TYPE"]["backup_code_by"] == 'source':
-            for dir_name in self.private_config["BACKUP_CONFIG"]["backup_code_dir"]:
-                shutil.copytree(osp.join(self.project_root, dir_name), osp.join(code_dir, dir_name),
-                                ignore=self.get_ignore_files)
+            if self.private_config["BACKUP_CONFIG"].get("backup_code_dir"):
+                for dir_name in self.private_config["BACKUP_CONFIG"]["backup_code_dir"]:
+                    shutil.copytree(osp.join(self.project_root, dir_name), osp.join(code_dir, dir_name),
+                                    ignore=self.get_ignore_files)
             if run_file is not None:
-                shutil.copy(run_file, code_dir)
+                _copy_run_file(run_file, code_dir)
         else:
             raise NotImplementedError