Near Clipping Plane on SceneCapture2D?

Will you add any way to put a near clipping plane on a SceneCapture? I am trying to make portals like in Valve’s “Portal”, and it seems to be impossible without the near clipping planes available on the SceneCapture2D…
Thanks and I hope you’ll add it in future updates!

up (don’t know if it is allowed to up here but I really need this fonctionnality)