Sony A5100's HDMI output, no on screen guidelines from the A5100?

[IronFilm]

Well.... I'm in a bit of a pickle. The Sony A5100 doesn't seem to put out over HDMI zebras or guidelines?? And the monitor I'm using on this gimbal doesn't have the options to do it for it.

Or am I missing something, is there a way I can make what I see on the monitor be exactly the same as what the A5100's screen would show?? As I'm wanting it to show the 1.85:1 guidelines just like on the back of the screen of the camera itself.