When you reuse existing NSF components in composite applications you can run in real estate issues. That is because existing NSF component views (e.g. Notes views or Notes documents) have mostly been designed to take up the whole window. When you now put multiple of these component views on one page very often the UI doesn't look that great anymore since you now see a lot of scrollbars.
When you implement your own first composite applications with NSF components you'll quickly see the need for a capability to show an existing Notes view on a page but not to show the Notes navigator which is always displayed when you open a view via 'Notes://.....ViewName?OpenView'. You can use this feature to customize the layout of the view in the context of the composite application. More specifically there is a new parameter '&HideNavigator' to the Notes URL to make sure really only the view is displayed (see bottom component view on the screenshot).
In order to use this feature you can use the NSF component picker in the CAE to navigate to a certain database and view within that database. The NSF component picker will then generate the Notes URL. After this you can manually tweak this URL and add the parameter '&HideNavigator':