Implement sample functionality for concept editor
- Handle multiple inputs
- Take from sample data if available
(from redmine: issue id 546, created on 2018-01-22tgradl, closed on 2018-01-22)
- Relations:
- relates #536 (closed)
- relates #545 (closed)
(from redmine: issue id 546, created on 2018-01-22tgradl, closed on 2018-01-22)