Display Alll Product in one Page in opencart

1. You have to create separate page for displaying all products.
   1. Create Model file catalog\model\catalog\allproduct.php and paste code this http://pastebin.com/suF5TP3z
   2. Create Controller file catalog\controller\productallproduct.php and paste below code http://pastebin.com/jZq3hZyc
   3. Create View file catalog\view\theme\default\template\productallproduct.tpl and paste below code http://pastebin.com/1HNh3x734 . Create Language file catalog\language\en-gb\product\allproduct.php and paste below code http://pastebin.com/EcyJH7F9
      5. Enable module from back-end You can see link in menu
         
         
2. Display All Category in Menu
   1. Open and edit your category:
   2. Select tab Data:
   3. Find and Check:Top: Display in the top menu bar.
      
      Note : Only works for the top parent categories.You will need to check all the top level categories.It’s Opencart bugs.