Okay, found an
old post on eqinterface.com that talks about the location elements of the buff button being ignored.
Incase the original goes away, here's the relevant text:
"Another limitation with the buff window: EQ determines how many buffs can be shown based on the size of the first buff icon and the size of the window. This is because the default buff window can be resized and the number of visible buffs is dynamic. This is also why the location values do nothing; the buff window automatically sorts buff locations for resizing purposes.
You can get around the location hard-codedness by using autostretch to forcibly place the buffs in the window where you want them. You're still at the mercy for the number of visible buffs based on the size of the first buff versus the size of the buff window though."
Still hoping for some help from someone more experienced than I.