[Gimp-user] Batch tool suggestions? (corr.)

[norman]

> > 4.) Perform 'Find Edges (Sobel)' on the  mask
> 
> Value: 0.25
> 
> > 5.) Perform a 'Gaussian Blur' (value: 0.35 ... 0.50)
> > on the mask
> 
> This should actually read '0.2'. ('0.35 ... 0.50' are the
> values I use for the final 'Unsharp Mask'.)

I would like to try this idea but I am not sure how to copy a layer into
a mask. I have tried various things and even referred to the help file
with no success. Could you please explain to ignorant old me what to do?

Thanks

Norman