To add news, go to Front CMS > News then click on Add button present at top right corner in the news list page, then enter news Title, Date, Description, Add Media, SEO Detail (Meta Title, Meta Keyword, Meta Description) and select Sidebar Setting to show/hide sidebar and select Featured Image (you can delete feature image click on Delete button) and then click on Save button.
Here you can view added News/Notices in the News List page.
To edit news click on Edit icon and to delete news click on Delete icon present in the news list.