On com_mailer, added a special module that contains the code to create a button for emailing that is added to certain grids based on conditional module settings. You can use this to make some of your reports/grids useful to backend users - to send certain prewritten emails manually to customers/users. There is an option to specify a file that should be read to control what components and functions to call and what data is required to send emails so that emails in your closed source projects can also be called with this tool. Included an example of the emails definition with thorough documentation!