diff --git a/jmclient/jmclient/__init__.py b/jmclient/jmclient/__init__.py
index 34ab45f..489c749 100644
--- a/jmclient/jmclient/__init__.py
+++ b/jmclient/jmclient/__init__.py
@@ -21,7 +21,8 @@ from .wallet import (AbstractWallet, BitcoinCoreInterface, Wallet,
                      create_wallet_file)
 from .configure import (load_program_config, jm_single, get_p2pk_vbyte,
     get_network, jm_single, get_network, validate_address, get_irc_mchannels,
-    check_utxo_blacklist, get_blockchain_interface_instance, get_p2sh_vbyte)
+    check_utxo_blacklist, get_blockchain_interface_instance, get_p2sh_vbyte,
+    set_config)
 from .blockchaininterface import (BlockrInterface, BlockchainInterface, sync_wallet,
                                   RegtestBitcoinCoreInterface, BitcoinCoreInterface)
 from .electruminterface import ElectrumInterface
diff --git a/jmclient/jmclient/configure.py b/jmclient/jmclient/configure.py
index 78c965c..669ec11 100644
--- a/jmclient/jmclient/configure.py
+++ b/jmclient/jmclient/configure.py
@@ -205,6 +205,13 @@ accept_commitment_broadcasts = 1
 commit_file_location = cmtdata/commitments.json
 """
 
+#This allows use of the jmclient package with a
+#configuration set by an external caller; not to be used
+#in conjuction with calls to load_program_config.
+def set_config(cfg, bcint=None):
+    global_singleton.config = cfg
+    if bcint:
+        global_singleton.bc_interface = bcint
 
 def get_irc_mchannels():
     fields = [("host", str), ("port", int), ("channel", str), ("usessl", str),