[Users] select messages by arrow-keys?

[altesCoon]

Hi again.

I would like to go up and down the message list of a folder just by the
arrow-up/down-keys on my keyboard, but for each message i have to hit
"Enter" to select and show it.
Is there any way to tell claws, that it should select a messages just
by the arrow-keys, means selecting and showing a message just by
scrolling to it in the list by keyboard?

Regards
  altesCoon