MZ-Tools Articles Series: HOWTO: Create a project item from a Visual Studio add-in

A question in the MSDN VSX forum has reminded me that I had pending to write this article about how to add new project items (files) to a project or folder, either from a template or existing (and in turn copied or linked):

HOWTO: Create a project item from a Visual Studio add-in
http://www.mztools.com/articles/2014/MZ2014009.aspx

This article completes a series about using the automation model (EnvDTE) to create solutions, projects, projects inside folders, folders, project items and issues and bugs that you may encounter: