Having exactly the same issue.
Would love to hear if you had any luck
Radeo Software V 16.6, Windows 10, AMD Radeon R9 200 series.
I signed up to ask this very same question. Multiple displays are very important to me as my next major upgrade will be 3 - 5 monitors (I'm getting 3 low-bezel monitors but am likely keeping my current monitor which I purchased for its color accuracy - and my other monitor may or may not be worth more to me than the $35 or so I'd be able to sell it for). So I'll need a pretty powerful card to run that many monitors. But for productivity it makes no sense whatsoever to have more than 3 monitors and it's much better to have them separate than to have them read as 1 display.
Eyefinity not being able to be quickly configured or reconfigured is a deal breaker. I've had times where I configure my dual monitor setup only to find out that it won't let me add bezel compensation. So I redo it and then it'll let me (or I have to do it a 3rd time...) - Sometimes the option is just not there. Additionally I can ONLY adjust the height offset of my monitors when initially configuring. I can't (as far as I can tell) access that after I've passed the screen. Because my lesser monitor has a horrible forward (faces downward) tilt there's a height difference that changes based on how far "up" the screen you go. So I need to adjust this for every game based on where most of the action takes place. This is pretty much only a problem for setups where the bezel is in the middle (ie 2 monitors instead of 3) and there's no way to offset the camera due to HUD or some other thing the dev didn't consider. But it's still a pretty big problem that didn't exist previously. Creating*, Editing, and Switching between profiles (preferably automatically*) is pretty much a necessity D:
* Yes I'm aware that this is indeed a feature. It can definitely be improved.