QuickLook in 3 pane view

I’d like to browse through a bunch of old WordPerfect files and thought if I add the WP QL-Plugin, the content would show up in the document pane.

But it doesn’t, it only pops up after pressing SPACE.

Is there a way to change DT so that it displays the content in the regular document pane?

Kind regards,

Does this persist after a restart of DEVONthink? If so, how about a machine reboot?

Restarting DT and restarting the Mac (OS 10.11.1) doesn’t help.

Any clues?