This might be a really dumb question, but here goes. When working with the Sass version of Foundation for Emails do I have to install a new project every time I want to make a new email? Or can I just create new pages within the src directory? If the latter is the case, how does that affect the build process? Will it attempt to build everything within the src directiory, or can I specify which files to use in the build? I don't recall seeing anything in the documentation addressing this.