I have two pages that should be same in layout but they are not. Only thing that is different in that one menuitem has one more modules under active modules in the setting of menu item. I want to add that module to another page as well, but I am not sure, how to add another module. I dont see any option to add.
1/ In Joomla! Administrator, go to Extensions -> module Manager -> New -> Select the module that you want to create -> ...
2/ You can copy/clone any module in Module Manager