Pencil and Eraser with different settings simultaneously?

[gnuimpcub]

Hi,

I am using Gimp 2.8.18 on Debian 9 64-bit Gnome 3.22.2.

I use Pencil (and Paintbrush) and Eraser fairly often, and I find it inconvenient to set each tool differently (e.g., the size) each time I use them. Would it be possible to set, say, the size of the Pencil to 2 and the size of the Eraser to 20 permanently, I mean for the ongoing session?

This would eliminate the need to set the sizes anew each time I use a different tool.

Thanks