How to do HDR shots with OMD EM5?
If you mean is there some magical, in-camera HDR option the answer is No.
You'll have to use AEB (Auto Exposure Bracketing) and then process the resulting pics in an outside software program such as Photomatix.
To make matters even more tedious, Olympus probably has the worst implementation of AEB imaginable.
It's enough to make me give the GH3 more than a passing glance once more reviews are in.