diff --git a/utils/config.py b/utils/config.py
index 665fbc9..a1c81cf 100644
--- a/utils/config.py
+++ b/utils/config.py
@@ -59,3 +59,7 @@ class Config:
         self.test_interval = 0
         self.test_repetitions = 10
         self.evaluation_env = None
+
+    def merge(self, config_dict):
+        for key in config_dict.keys():
+            setattr(self, key, config_dict[key])
diff --git a/utils/schedule.py b/utils/schedule.py
index 7a191e0..dd48f99 100644
--- a/utils/schedule.py
+++ b/utils/schedule.py
@@ -12,7 +12,10 @@ class ConstantSchedule:
         return self.val
 
 class LinearSchedule:
-    def __init__(self, start, end, steps):
+    def __init__(self, start, end=None, steps=None):
+        if end is None:
+            end = start
+            steps = 1
         self.inc = (end - start) / float(steps)
         self.current = start
         self.end = end