title: Edit a build system in Sublime Text 3
body: <p>How can I edit a build system in Sublime Text 3, whether its a native one or one I installed through Package Control? For instance, for the Sass Build package, it outputs .map files recently, so I'd like to configure it so that it stops doing that.</p>
  
  <p>It seems to be different from <a href="https://stackoverflow.com/questions/13652786/how-to-edit-a-native-build-system-in-sublime-text">Sublime Text 2</a> because those instructions don't seem to apply to what I have in my Sublime Text 3 folder.</p>
  
  <p>And can I change them on a per-project basis?</p>