webforj/webforj-documentation#369 (comment)
In this step, views move to render inside the AppLayout main content area. Follow the same approach used in the side menu template. Both the Main view and the About view render in this content area.
The Main view includes an Add button in the top right corner. The table fills the full width and the remaining height of the space.
The side navigation menu shows two links. Dashboard opens the Main view. About opens a new placeholder page. The About page is a centered placeholder with text and a large icon above it.
webforj/webforj-documentation#369 (comment)