title: Flattening Layers in MapBox
body: <p>In brief, I’m looking for a way to either flatten layers in MapBox, or import a MapBox project into TileMill so I can flatten it into a new tile set.</p>
  
  <p>My problem is this: I’m working with StroyMapJS (a JavaScript library) and it only recognizes the base layer coming from MapBox, with no additional layers. However, I have some vector data that is a critical part of the story that I want included. My thinking is that if I can flatten or merge the layers into a new basemap I would be fine. So, I would either:</p>
  
  <ol>
  <li>Do this directly in MapBox – but I can’t find a feature to do this, or</li>
  <li>Import the Terrain MapBox layer into TileMill, add my vector
  data, and then export as a new set of tiles and create a new project
  from these tiles in MapBox - but I can’t figure out how to bring a
  MapBox project into TileMill.</li>
  </ol>
  
  <p>Am I going about this the wrong way or am I mission something?</p>
  
  <p>Thanks</p>