Good grief, has there ever been a cheesier title for a post? As you know, we once again have an opportunity to log in to the Beta server, this time to try out the upcoming 64-bit game platform upgrade. So far I'm very optimistic; everything works beta... er, better.
If you've decided to copy some of your characters over and give Beta a try, there's no reason why DarqUI can't tag along, bringing with it all of your settings and customizations from Live. Yes you can just copy the DarqUI_v3 folder over to \BetaServer\UI, but to get all the benefits offered by the utility you'll want to do it the "right" way using a copy of the utility targeted at your Beta installation. It only takes a couple of minutes.
Click to see the DarqUI setup video which has plenty of info for Beta testers. If you have trouble with anything, feel free to post here or in Discord.