You'll want to make a copy of your DarqUI utility into the BetaServer\UI\ folder and run it from there. The utility will detect that it is in Beta and configure those windows and characters separately from your Live game. XL size files will be accessible from the Updates page after you have added your premium key to the utility.
We have a video that explains most Beta setup issues. Look below the video for skip times for the different topics covered in the video.
https://www.patreon.com/posts/58823581
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