Now up to-date - instruction video coming soon!
ELVUI 3.0 is the base pack for this.
Type /moveui to move the "Boss Frame" (ultraxion button/madness button) to where you want it. By default it is center of your screen.
I will keep the base package up-to-date, however additional addon updates (ACP, etc) should be updated by the end user. Occasional package updates for major updates (ElvUI specifically) most addons will be up-to-date as of the DAY the package is released. I recommend using Curse Client to update.
Addon Control Panel
Back up your Interface and WTF folders. After that delete the files from your world of warcraft folder.
Download and exctract those folders from AffinityUI and put them into your World of Warcraft folder.
Open the WTF folder and rename the following :
Your account name=> to your account name.
Your server name => to your server name.
Your toon name => to your character name. Druid is the best one to use if you are not one of the above classes.
Before your first login
Log into your WOW ACCOUNT (not your character) and make sure to check "LOAD OUT OF DATE ADDONS" (just as a precaution, some addons may be out of date due to being older, but still function)
After your first login
Type /ec. A menu will appear. Verify that the UI scale is where you want it. You can either select UI scale, or Auto UI Scale (I use AutoUI Scale)
Type /moveui to move Elements of the UI (Minimap, Actionbars, Unit Frames, etc)
More on Usage
Go read the Tukui Faq. It has a lot of awesome features.
Generally by clicking on specific items (Guild, Friends, Time, etc) will open a menu. For the micro-menu, MIDDLECLICK on the minimap.