I had the same request and I went looking around for how we can make this happen. Seems like we can give Microsoft a heads-up on their feedback hub according to this article: https://devblogs.microsoft.com/directx/exciting-additions-to-your-auto-hdr-experience-on-pc/
"If you notice issues in these additions to Auto HDR, or your favorite DX11/DX12 titles don’t work yet, or you have other ideas on how your experience can be improved, please let us know through the feedback hub app. When you file feedback, select Category: Gaming and Xbox with the Subcategory: Game Performance, and make sure to include the words Auto HDR in the title or description when you provide feedback so we can more easily find it." etc.
So using the feedback app found on the Windows Store, I followed the instructions and gave my feedback. So the more of us who do so, the more chance they'll get around to it I suppose.
