diff --git a/csst_common/data_manager.py b/csst_common/data_manager.py
index 0f82f807ada34dabeb83f13fa5c01a7f14ec5ff5..4059344d0e2df8cf31f74397edae821d64e3f9e0 100644
--- a/csst_common/data_manager.py
+++ b/csst_common/data_manager.py
@@ -646,6 +646,13 @@ class CsstMsDataManager:
         for k, v in DFS_CONF[dfs_node].items():
             os.environ[k] = v
 
+    @staticmethod
+    def dfs_setup(dfs_node="pml"):
+        """ Setup DFS configuration. """
+        assert dfs_node in DFS_CONF.keys()
+        for k, v in DFS_CONF[dfs_node].items():
+            os.environ[k] = v
+
     @staticmethod
     def dfs_is_available():
         """ Test if DFS works. """