Editor: Add dialogue mode only columns
(RM-1219 from redmine: created on 2014-03-20 by Marc Zinnschlag, , closed on 2015-04-21 by cc 9cii, duplicates #2433 (closed))
Edited by redmine
(RM-1219 from redmine: created on 2014-03-20 by Marc Zinnschlag, , closed on 2015-04-21 by cc 9cii, duplicates #2433 (closed))