diff --git a/libs/P_C.py b/libs/P_C.py
index 37d12de..df1a449 100644
--- a/libs/P_C.py
+++ b/libs/P_C.py
@@ -8,7 +8,10 @@ file name stand for : Physics calculation
 import libs
 import math
 
-from libs.tools import F_Mi, F_Mu, F_A, F_D
+F_A = libs.tools.F_A()
+F_D = libs.tools.F_D()
+F_Mi = libs.tools.F_Mi()
+F_Mu = libs.tools.F_mu()
 
 
 def S_C_float_check(SC):  # stand for Scientific notation's float check
@@ -82,4 +85,9 @@ def G_C(M, m, R, G):  # stand for gravity calculation
 
 
 def distance(A, B):
+    """
+    formats:
+    A & B format: docs.basic_config:basic_poi
+    """
+    D = libs
     pass
diff --git a/libs/__init__.py b/libs/__init__.py
index 6498c8e..e6c2fab 100644
--- a/libs/__init__.py
+++ b/libs/__init__.py
@@ -11,6 +11,6 @@ import libs.main
 import libs.tools
 import libs.loads
 import libs.setup
-import libs.config
+import libs.configs
 import libs.delivery
 import libs.render_thread
diff --git a/libs/config.py b/libs/configs.py
similarity index 100%
rename from libs/config.py
rename to libs/configs.py