Allow 1:N concept mappings
- currently only 1:1 displayed
(from redmine: issue id 398, created on 2018-01-22tgradl, closed on 2018-01-22)
- Relations:
- relates #396
- currently only 1:1 displayed
(from redmine: issue id 398, created on 2018-01-22tgradl, closed on 2018-01-22)