Re: [Gimp-user] Layer Opacity Access Point(s) Madness

[Gary Aitken <gimp dreamchaser org>]

That was pretty difficult to get a handle on.
Is this what you're looking for:

Windows/Dockable Dialogs/Layers  (<ctl>L)
2nd thing down is an "Opacity" slider.

Are you looking for a way to select a specific layer and operate on it 
using the Opacity slider via the keyboard?
Or just find the slider in the first place?

Gary