Nokia Camera - Will the settings be saved when I edit pictures in Smart Capture Mode?

Yes, your edits will be saved in Smart Capture Mode. Nokia Camera always saves the originals so you can edit again and again. The latest edit will be saved for each feature. For example, you can edit Motion Focus and Action Shot, and your latest edit of both will be stored. If you go back and edit Action Shot again and save, it will be stored as the latest version of Action Shot and still preserve the edit of Motion Focus.