diff --git a/Examples/Modern UI/ModernUI.nsh b/Examples/Modern UI/ModernUI.nsh
index 6aa1301b..a7cb7700 100644
--- a/Examples/Modern UI/ModernUI.nsh	
+++ b/Examples/Modern UI/ModernUI.nsh	
@@ -1,4 +1,4 @@
-;Modern UI Header File version 1.19c
+;Modern UI Header File version 1.19d - WORKING ON INSTALLOPTIONS INTEGRATION
 ;Written by Joost Verburg
 
 ;See Example.nsi & Multilanguage.nsi for an example of usage
@@ -244,4 +244,26 @@
    
 !macroend
 
+!macro MUI_INSTALLOPTIONS_UNBACK
+
+  StrCmp ${IO_DIRECTION} "${IO_DIRECTION_NEXT}" "" +3
+    Call un.onPrevPage
+    Abort
+  StrCmp ${IO_DIRECTION} "${IO_DIRECTION_PREV}" "" +3
+    Call un.onPrevPage
+    Goto done
+            
+!macroend
+
+!macro MUI_INSTALLOPTIONS_UNNEXT
+
+  StrCmp ${IO_DIRECTION} ${IO_DIRECTION_NEXT} "" +3
+    Call un.onNextPage
+    Goto done
+  StrCmp ${IO_DIRECTION} ${IO_DIRECTION_PREV} "" +3
+    Call un.onNextPage
+    Abort
+   
+!macroend
+
 !endif
\ No newline at end of file