diff --git a/DemoPrograms/Demo_Column_Collapsible_Sections.py b/DemoPrograms/Demo_Column_Collapsible_Sections.py
index 22b5c2ad..51634015 100644
--- a/DemoPrograms/Demo_Column_Collapsible_Sections.py
+++ b/DemoPrograms/Demo_Column_Collapsible_Sections.py
@@ -7,12 +7,24 @@ import PySimpleGUI as sg
 
     It uses the "pin" function so you'll need version 4.28.0+
 
+    A number of "shortcut aliases" are used in the layouts to compact things a bit.
+    In case you've not encountered these shortcuts, the meaning are:
+    B = Button, T = Text, I = Input = InputText, k = key
+    Also, both methods for specifying Button colors were used (tuple / single string)
+    Section #2 uses them the most to show you what it's like to use more compact names.
+
+    To open/close a section, click on the arrow or name of the section.
+    Section 2 can also be controlled using the checkbox at the top of the window just to
+    show that there are multiple way to trigger events such as these.
+
     Copyright 2020 PySimpleGUI.org
 """
 
+
 SYMBOL_UP =    '▲'
 SYMBOL_DOWN =  '▼'
 
+
 def collapse(layout, key):
     """
     Helper function that creates a Column that can be later made hidden, thus appearing "collapsed"
@@ -24,27 +36,34 @@ def collapse(layout, key):
     return sg.pin(sg.Column(layout, key=key))
 
 
-section1 = [[sg.pin(sg.Input('Input sec 1', key='-IN1-'))],
+section1 = [[sg.Input('Input sec 1', key='-IN1-')],
             [sg.Input(key='-IN11-')],
-            [sg.pin(sg.Button('Button section 1', button_color='yellow on green')), sg.pin(sg.Button('Button2 section 1', button_color='yellow on green')), sg.B('Button3 section 1', button_color='yellow on green')]]
+            [sg.Button('Button section 1',  button_color='yellow on green'),
+             sg.Button('Button2 section 1', button_color='yellow on green'),
+             sg.Button('Button3 section 1', button_color='yellow on green')]]
 
-section2 = [[sg.pin(sg.Input('Input sec 2', key='-IN2-'))],
-            [sg.Input(key='-IN21-')],
-            [sg.pin(sg.Button('Button section 2', button_color='yellow on purple')),sg.Button('Button2 section 2', button_color='yellow on purple'), sg.B('Button3 section 2', button_color='yellow on purple')]]
+section2 = [[sg.I('Input sec 2', k='-IN2-')],
+            [sg.I(k='-IN21-')],
+            [sg.B('Button section 2',  button_color=('yellow', 'purple')),
+             sg.B('Button2 section 2', button_color=('yellow', 'purple')),
+             sg.B('Button3 section 2', button_color=('yellow', 'purple'))]]
 
 
-layout = [  [sg.Text('Window with 2 collapsible sections')],
-            [sg.pin(sg.Input('Input 1', key='-IN0-'))],
-            [sg.T(SYMBOL_DOWN, enable_events=True, k='-OPEN SEC1-', text_color='yellow'), sg.T('Section 1', enable_events=True, text_color='yellow', k='-OPEN SEC1-0')],
+layout =   [[sg.Text('Window with 2 collapsible sections')],
+            [sg.Checkbox('Blank checkbox'), sg.Checkbox('Hide Section 2', enable_events=True, key='-OPEN SEC2-CHECKBOX')],
+            #### Section 1 part ####
+            [sg.T(SYMBOL_DOWN, enable_events=True, k='-OPEN SEC1-', text_color='yellow'), sg.T('Section 1', enable_events=True, text_color='yellow', k='-OPEN SEC1-TEXT')],
             [collapse(section1, '-SEC1-')],
+            #### Section 2 part ####
             [sg.T(SYMBOL_DOWN, enable_events=True, k='-OPEN SEC2-', text_color='purple'),
-             sg.T('Section 2', enable_events=True, text_color='purple', k='-OPEN SEC2-0')],
+             sg.T('Section 2', enable_events=True, text_color='purple', k='-OPEN SEC2-TEXT')],
             [collapse(section2, '-SEC2-')],
-            [sg.pin(sg.Button('Button1')), sg.pin(sg.Button('Button2')), sg.B('Hide/Unhide Input 1', k='-HIDE-IN1-')]]
+            #### Buttons at bottom ####
+            [sg.Button('Button1'),sg.Button('Button2'), sg.Button('Exit')]]
 
-window = sg.Window('Visible / Invisible Element Demo', layout, finalize=True)
+window = sg.Window('Visible / Invisible Element Demo', layout)
 
-toggle_in, opened1, opened2 = False, True, True
+opened1, opened2 = True, True
 
 while True:             # Event Loop
     event, values = window.read()
@@ -60,9 +79,7 @@ while True:             # Event Loop
     if event.startswith('-OPEN SEC2-'):
         opened2 = not opened2
         window['-OPEN SEC2-'].update(SYMBOL_DOWN if opened2 else SYMBOL_UP)
+        window['-OPEN SEC2-CHECKBOX'].update(not opened2)
         window['-SEC2-'].update(visible=opened2)
 
-    if event == '-HIDE-IN1-':
-        window['-IN0-'].update(visible=toggle_in)
-        toggle_in = not toggle_in
 window.close()