diff --git a/.gitignore b/.gitignore
index cbcdc08..6233d3c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,3 +6,4 @@ theme.py
 !/dist/drawingtraining
 /*.spec
 /build/
+/config.json
diff --git a/src/entity/config.py b/src/entity/config.py
new file mode 100644
index 0000000..b90ae42
--- /dev/null
+++ b/src/entity/config.py
@@ -0,0 +1,49 @@
+import json
+import os
+from pathlib import Path
+
+from configparser import *
+import typing
+
+
+class Config(object):
+
+    _CONFIG_FILE: typing.Optional[str] = None
+    _CONFIG: typing.Optional[dict] = None
+
+    def __init__(self, config_file=None):
+        if config_file is None:
+            config_file = "config.json"
+
+        # Check that specified config file exists
+        if not os.path.exists(config_file):
+            Path(config_file).touch()
+            with open(config_file, 'w') as configfile:
+                json.dump({"session": []}, configfile)
+
+        Config._CONFIG_FILE = config_file
+
+        with open(config_file, 'r') as f:
+            Config._CONFIG = json.load(f)
+
+    @staticmethod
+    def save():
+        with open(Config._CONFIG_FILE, 'w') as configfile:
+            json.dump(Config._CONFIG, configfile)
+
+    @staticmethod
+    def get_config_file() -> str:
+        return Config._CONFIG_FILE
+
+    @staticmethod
+    def get_required_env_var(env_var: str) -> str:
+        if env_var not in os.environ:
+            raise Exception(f"Please set the {env_var} environment variable")
+        return os.environ[env_var]
+
+    @staticmethod
+    def get_required_config_var(config_var: str) -> str:
+        assert Config._CONFIG
+        if config_var not in Config._CONFIG:
+            raise Exception(f"Please set the {config_var} variable in the config file {Config._CONFIG_FILE}")
+        return Config._CONFIG[config_var]
diff --git a/src/window/app.py b/src/window/app.py
index 872e778..a665a17 100644
--- a/src/window/app.py
+++ b/src/window/app.py
@@ -1,6 +1,8 @@
 from tkinter import *
 from tkinter import filedialog
 from pathlib import Path
+
+from src.entity.config import Config
 from src.util import Util
 from functools import partial
 from src.window.image import ImageWindow
@@ -10,6 +12,7 @@ from src.window.session import SessionWindow
 class App:
     def __init__(self, root):
         super().__init__()
+        self.config = Config()
         self.session_window = None
         self.image_window = None
         self.root = root
diff --git a/src/window/session.py b/src/window/session.py
index 88ec349..f2d574c 100644
--- a/src/window/session.py
+++ b/src/window/session.py
@@ -1,11 +1,16 @@
 from functools import partial
 from tkinter import *
 
+from src.entity.config import Config
 from src.entity.session.drawing import DrawingElement
+from src.util import Util
 
 
 class SessionWindow:
     def __init__(self, app):
+        self.total_row_time_value_label = None
+        self.down_button = None
+        self.up_button = None
         self.timer_input = None
         self.number_of_drawings_input = None
         self.selected_element_index = -1
@@ -32,17 +37,30 @@ class SessionWindow:
     def update_session_list(self):
         self.reset_list()
         for i, session in enumerate(self.list_in_session):
+            bg = "blue" if i == self.selected_element_index else "grey85"
             new_session = Button(self.left_column,
-                                 text=session.number_of_drawings + " drawings of "+session.timer+"s each",
-                                 command=partial(self.edit_element, i)
+                                 text=session.number_of_drawings + " drawings of " + session.timer + "s each",
+                                 command=partial(self.edit_element, i),
+                                 bg=bg
                                  )
             new_session.grid(row=i, column=0)
 
-        self.add_button = Button(self.left_column, text="+", command=self.add_element)
-        self.add_button.grid()
+        button_frame = Frame(self.left_column)
+        self.add_button = Button(button_frame, text="+", command=self.add_element)
+        self.add_button.pack(side=LEFT, padx=0, pady=0)
 
-        self.delete_button = Button(self.left_column, text="-", command=self.remove_element)
-        self.delete_button.grid()
+        self.delete_button = Button(button_frame, text="-", command=self.remove_element)
+        self.delete_button.pack(side=LEFT, padx=0, pady=0)
+
+        self.up_button = Button(button_frame, text="^", command=self.up_element)
+        self.up_button.pack(side=LEFT, padx=0, pady=0)
+
+        self.down_button = Button(button_frame, text="v", command=self.down_element)
+        self.down_button.pack(side=LEFT, padx=0, pady=0)
+
+        self.save_session_button = Button(button_frame, text="v", command=self.save_session)
+        self.save_session_button.pack(side=LEFT, padx=0, pady=0)
+        button_frame.grid()
 
     def reset_element(self):
         for widget in self.right_column.winfo_children():
@@ -53,9 +71,11 @@ class SessionWindow:
             widget.destroy()
 
     def update_element(self, index=None):
+        self.reset_element()
         if index is not None:
             self.selected_element_index = index
             element = self.list_in_session[self.selected_element_index]
+            self.update_session_list()
         else:
             element = DrawingElement()
 
@@ -64,24 +84,32 @@ class SessionWindow:
 
         self.number_of_drawings_input = Entry(self.right_column)
         self.number_of_drawings_input.insert(INSERT, element.number_of_drawings)
+        self.number_of_drawings_input.bind("<KeyRelease>", lambda e: self.update_local_timer(e))
         self.number_of_drawings_input.pack()
+        self.number_of_drawings_input.focus_set()
 
         timer_label = Label(self.right_column, text="Time per drawing in seconds")
         timer_label.pack()
 
         self.timer_input = Entry(self.right_column)
         self.timer_input.insert(INSERT, element.timer)
+        self.timer_input.bind("<KeyRelease>", lambda e: self.update_local_timer(e))
         self.timer_input.pack()
 
-        row_time = IntVar()
         total_row_time_label = Label(self.right_column, text="Total row time")
         total_row_time_label.pack()
-        total_row_time_value_label = Label(self.right_column, textvariable=row_time)
-        total_row_time_value_label.pack()
+        self.total_row_time_value_label = Label(self.right_column, text="")
+        self.total_row_time_value_label.pack()
+        self.update_local_timer()
 
         save_button = Button(self.right_column, text="Save", command=self.save)
         save_button.pack()
 
+    def update_local_timer(self, event=None):
+        self.total_row_time_value_label.config(
+            text=Util.format_seconds(int(self.timer_input.get()) * int(self.number_of_drawings_input.get()))
+        )
+
     def remove_element(self):
         self.list_in_session.pop(self.selected_element_index)
         self.selected_element_index = -1
@@ -91,8 +119,22 @@ class SessionWindow:
         self.update_element(i)
 
     def add_element(self):
+        self.selected_element_index = -1
+        self.update_session_list()
         self.update_element()
 
+    def up_element(self):
+        self.list_in_session.insert(self.selected_element_index - 1,
+                                    self.list_in_session.pop(self.selected_element_index))
+        self.selected_element_index -= 1
+        self.update_session_list()
+
+    def down_element(self):
+        self.list_in_session.insert(self.selected_element_index + 1,
+                                    self.list_in_session.pop(self.selected_element_index))
+        self.selected_element_index += 1
+        self.update_session_list()
+
     def save(self):
         element = DrawingElement() if self.selected_element_index < 0 \
             else self.list_in_session[self.selected_element_index]
@@ -111,3 +153,9 @@ class SessionWindow:
     def save_on_closing(self):
         # TODO save
         self.window.destroy()
+
+    def save_session(self):
+        for element in self.list_in_session:
+            Config._CONFIG['session'].append(element)
+        Config.save()
+        self.window.destroy()