Allow (minor) customization of the user interface.

As a healer, the 2 sets of important information are: 1) the health bars on the lower right corner of the screen, and 2) the chat log. Because we read left to right, the information in the important information in the chat log is at the lower right corner of the screen. On a widescreen format, these two sets of information are fairly far apart.

This becomes inconvenient when paying attention to both. It would far more convenient to have the health bars displayed on the bottom left corner of the screen. This way, it is easier to pay attention to both the chat log and the health bars at the same time, as opposed to the current situation, having to alternate between opposite corners of the screen.