For communication sites we have on the menu bar the New + link where we can choose to create a list or a page or a news post among other choices. Does anyone know if its possible or even supported in customizing the New + menu link so that new options can be shown as a choice? I am not sure you do have a way to add more choices out of the box seems this may require development effort but will that be unsupported/not recommended? We basically have a use case where the business will like having a specific page template as a choice off the New + menu/controls but my feeling about this not recommended in modifying these native menu controls. Thanks for the advice
No, at the moment you cannot override the New option in the Home page and in the Site Contents Page...you can only do it in Site Pages, Document Libraries and lists by adding more content types
