core - Revision 18242: /addons/HeuristicLab.DataImporter/HeuristicLab.DataImporter.Command/ChangeDataset
..
AddNewColumnGroupCommand.cs
AlignColumnGroupsCommand.cs
DeleteColumnGroupCommand.cs
DeleteColumnsWithTooFewValuesCommand.cs
MergeColumnGroupsCommand.cs
MoveColumnGroupLeftCommand.cs
MoveColumnGroupRightCommand.cs
SplitColumnGroupCommand.cs