Re: [Gimp-user] History Brush

[Pat David <patdavid gmail com>]

> It is a simple way to "paint" away one layer to reveal the one below. EG. I
> duplicated one layer then desaturated it. I then took a snapshot of that
> layer.
> I then used the History Brush to paint over certain sections to reveal the
> original coloured layer beneath.

Sounds to me like you want Layer Masks?  Take a look at this tutorial on
the website and see if it offers what you are looking for:

http://www.gimp.org/tutorials/Layer_Masks/