Currently if there are multiple GPUs, or the on-board GPU is in use (for a secondary display for example), there is no option to pick which GPU metrics are used for the infographic display.
When specifying ' Dual Infographic' or any of the GPU specific display options, give us a drop-down to select which GPU (GPU 0, GPU 1, GPU 2, etc.) the metrics will be displayed from (or even an overall average option for SLI/Crossfire systems).
I feel like this should be fairly easy to implement, as all the metrics are already made available by the system, and it would give a lot more flexibility to those users who are using more than a single GPU.