In closed beta, the UM settings were cloned and put into one box so there would be no confusion over which settings were UM settings.
They never got around to removing the original and now duplicated settings though it was suggested to them often enough that they should. <shrug>
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Do these options suppose to change different settings of graphics engine?
If they change the same settings, then why in 2 places?
Normally options window is less than half size of what you see in screenshot (I had to extend it vertically to show all options). When you scroll down to second instance of settings, UM options become invisible and you don't know whether you making any changes for UM or not.