[Users] Settings of "three column view"

[mlist at riseup.net]

On Sun, 23 Jun 2019 08:22:48 -0000 Paul wrote:

> You need to change the hidden preference,
> 'two_line_vertical', to 0.

Cool.

Is there also a way to set the message part to be in
the middle and the message list to be on the right?