Could be helpful to be able to share what's on the screen when seeking help on forums like this. But for general users it's not that helpful a feature.
I've captured LCD screens several times using HDMI capture devices, but there are some functions that don't work when the camera is outputting on the HDMI. Also there is sometimes a readjustment of the icons when in a shooting mode. For example if I look that the LCD screen of the camera when it is in stills mode, the current mode shows on the top left corner overlaying the image. This is because the screen is 3x2 ratio. If I plug in a HDMI capture unit the camera sends a 16x9 ratio output, and moves the mode and other icons at the vertical edges of the frame so they are on the edge / outside of the image area. I would like to see that stopped more than I'd like to capture screens on the camera. Below is an example.
