title: Edit imported model in unity
body: <p>I captured a 3D-model of a room with my Lenovo Phab 2 Pro (Tango Device).</p>
  
  <p>It gave me a ".obj"-file. After importing it into Unity (per drag &amp; drop),
  is it possible to edit the mesh of that model? Cutting things off for example?</p>
  
  <p>I already made a more extensive description <a href="http://answers.unity3d.com/questions/1359111/trim-cut-off-parts-of-a-model-in-editor.html" rel="nofollow noreferrer">in the Unity forums</a> but did not get an answer for about a few weeks... Hopefully someone can help me with that?</p>
  
  <p>See the picture for an example of what I want to cut off or trim from the model I imported:
  <a href="https://i.stack.imgur.com/Vhtr8.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Vhtr8.png" alt="cut off parts of a model"></a></p>