Concentration/Maintained buffs

[Unchayned]

It hasn't been an issue on any of the characters I've played, but I understand that due to the mechanics of playing a bard, they often have to cancel buffs so that they can swap or recast them on the fly. Is there any way to make a single-click button to cancel a buff, or barring that could somebody at least make a *BIG* version of the concentration bar that would be extremely easy to click on? I know of at least one person that would appreciate it greatly.

On a slightly related note, I've poked around enough to suspect i'm out of luck as far as getting my maintained buffs window to show more than 12 buffs, unless SoE decides to export more of them. Is this correct? I have a lot of single-target buffs that I keep up, but once I have 12 buffs going I have to scramble to see/remember which of my dots/debuffs are on the mob since there's no icon to reference.