On Mon, 08 Apr 2013 20:58:03 +0200
Javier Garcia <tirengarfio@...2490...55...> wrote:

> Hi,
>
> I mean, I have a selected text, I would like to see the effect of the
> different fonts of the list that there is in the upper left corner going
> down in the list one by one with the cursor, instead of clicking on them
> to see the result.

The font selection tool will let you do that - the large uppercase T
icon on the row of icons across the top, between edit colors and view
layers.  Or Shift-Control-T.

Select you piece of text, open that tool, click on the top font in the
list, then Down-Arrow will cycle through the fonts quickly, using your
selected text as an example.

Cheers -Terry