Custom White Balance via Liveview and Color Wheel for color correction/grading

[robyneil]

I'm new here and just got a 70D.  I'm hoping you'll be porting ML to the 70D. Thank you in advance if you are.  For feature requests, these 2 would help my workflow:

* Provide an easier way to set custom white balance quickly like using touch screen to specify a white reference point in liveview.
* The color wheel on the Oly OMD EM-1 is also brilliant. I do lots of B&W and wished lots of time I can color correct photos and videos on the spot. Also provide a way to add graduated color filters using the color wheel (radial, bicubic, linear, etc..). 

Thank you.