What is this option (Override page title) used for?
i I didn’t see any difference if check this option or not.
It will override the property ‘Page title’ of the page the you open.
This page-title-value is:
shown in the browser’s tab;
shown in the title of popup pages;
used as page title in the html-code of the page;
You can also add the widget ‘Page title’ to a page.
Changing its value is mainly helpful if you use a page at more than one place. Like a page Customers_NewEdit. It will have the value ‘Edit Customer’, but if you call this page when creating a new customer, you better override it with ‘Create Customer’.