title: Custom Eclipse (CDT) project layout, different from folder structure
body: <p>A good hello to you fellow Stackoverflow people.</p>
  
  <p>I am stuck with a small dilemma here.</p>
  
  <p>At my work we used to work with UltraEdit projects but we want to migrate to using Eclipse CDT. (Not using its compiler/build options, we need an external SDK for this).</p>
  
  <p>On the harddisk we have a specific folder structure to keep things seperate between two teams. Namely the 'productcode' + 'applicationcode'-group and the 'drivercode'-group.
  Both groups have their own folder where they place sourcecode in.</p>
  
  <ul>
  <li>application</li>
  <li>drivercode</li>
  <li>productcode</li>
  </ul>
  
  <p>The filenames are given a specific prefix, denoting to which 'layer' they belong.</p>
  
  <ul>
  <li>os (operating system)</li>
  <li>application</li>
  <li>system</li>
  <li>unit</li>
  <li>component</li>
  <li>IO</li>
  <li>hardware</li>
  </ul>
  
  <p>All of these files (except for application which is only allowed in the application folder) can be in the product or drivercode folder.
  In UltraEdit all of these files are grouped under their respective layer. So our project has the following folders:</p>
  
  <ul>
  <li>0 Operating System</li>
  <li>1 Application Layer</li>
  <li>2 System Safety Layer</li>
  <li>3 Unit Layer</li>
  <li>4 Component Layer</li>
  <li>5 IO Layer</li>
  <li>6 Hardware Layer</li>
  <li>Generic</li>
  <li>XML</li>
  </ul>
  
  <p>The virtual folder '0 Operating System' holds all os_xxx files from the real folders 'drivercode/productcode' And the same goes for 2, 3, 4, 5 and 6.</p>
  
  <p><strong>TL;DR</strong>:<br>
  Is it possible to get the same (virtual) folder structure within Eclipse CDT?</p>
  
  <p>To make things more complex, this whole folder structure is devided in 3 projects. E.G. proj-1, proj-2, proj-3 and there is also a shared folder that holds code that is shared among projects.</p>