Index: trunk/sources/HeuristicLab.Problems.DataAnalysis/3.4/Implementation/Classification/ClassificationEnsembleSolution.cs
===================================================================
--- trunk/sources/HeuristicLab.Problems.DataAnalysis/3.4/Implementation/Classification/ClassificationEnsembleSolution.cs	(revision 12485)
+++ trunk/sources/HeuristicLab.Problems.DataAnalysis/3.4/Implementation/Classification/ClassificationEnsembleSolution.cs	(revision 12504)
@@ -35,5 +35,5 @@
   [StorableClass]
   [Item("Classification Ensemble Solution", "A classification solution that contains an ensemble of multiple classification models")]
-  [Creatable("Data Analysis - Ensembles")]
+  [Creatable(CreatableAttribute.Categories.DataAnalysisEnsembles, Priority = 110)]
   public sealed class ClassificationEnsembleSolution : ClassificationSolutionBase, IClassificationEnsembleSolution {
     private readonly Dictionary<int, double> trainingEvaluationCache = new Dictionary<int, double>();
Index: trunk/sources/HeuristicLab.Problems.DataAnalysis/3.4/Implementation/Classification/ClassificationProblem.cs
===================================================================
--- trunk/sources/HeuristicLab.Problems.DataAnalysis/3.4/Implementation/Classification/ClassificationProblem.cs	(revision 12485)
+++ trunk/sources/HeuristicLab.Problems.DataAnalysis/3.4/Implementation/Classification/ClassificationProblem.cs	(revision 12504)
@@ -27,5 +27,4 @@
   [StorableClass]
   [Item("Classification Problem", "A general classification problem.")]
-  [Creatable("Problems")]
   public class ClassificationProblem : DataAnalysisProblem<IClassificationProblemData>, IClassificationProblem, IStorableContent {
     public string Filename { get; set; }
Index: trunk/sources/HeuristicLab.Problems.DataAnalysis/3.4/Implementation/Clustering/ClusteringProblem.cs
===================================================================
--- trunk/sources/HeuristicLab.Problems.DataAnalysis/3.4/Implementation/Clustering/ClusteringProblem.cs	(revision 12485)
+++ trunk/sources/HeuristicLab.Problems.DataAnalysis/3.4/Implementation/Clustering/ClusteringProblem.cs	(revision 12504)
@@ -27,5 +27,4 @@
   [StorableClass]
   [Item("Clustering Problem", "A general clustering problem.")]
-  [Creatable("Problems")]
   public class ClusteringProblem : DataAnalysisProblem<IClusteringProblemData>, IClusteringProblem {
     [StorableConstructor]
Index: trunk/sources/HeuristicLab.Problems.DataAnalysis/3.4/Implementation/Regression/RegressionEnsembleSolution.cs
===================================================================
--- trunk/sources/HeuristicLab.Problems.DataAnalysis/3.4/Implementation/Regression/RegressionEnsembleSolution.cs	(revision 12485)
+++ trunk/sources/HeuristicLab.Problems.DataAnalysis/3.4/Implementation/Regression/RegressionEnsembleSolution.cs	(revision 12504)
@@ -35,5 +35,5 @@
   [StorableClass]
   [Item("Regression Ensemble Solution", "A regression solution that contains an ensemble of multiple regression models")]
-  [Creatable("Data Analysis - Ensembles")]
+  [Creatable(CreatableAttribute.Categories.DataAnalysisEnsembles, Priority = 100)]
   public sealed class RegressionEnsembleSolution : RegressionSolutionBase, IRegressionEnsembleSolution {
     private readonly Dictionary<int, double> trainingEvaluationCache = new Dictionary<int, double>();
Index: trunk/sources/HeuristicLab.Problems.DataAnalysis/3.4/Implementation/Regression/RegressionProblem.cs
===================================================================
--- trunk/sources/HeuristicLab.Problems.DataAnalysis/3.4/Implementation/Regression/RegressionProblem.cs	(revision 12485)
+++ trunk/sources/HeuristicLab.Problems.DataAnalysis/3.4/Implementation/Regression/RegressionProblem.cs	(revision 12504)
@@ -27,5 +27,4 @@
   [StorableClass]
   [Item("Regression Problem", "A general regression problem.")]
-  [Creatable("Problems")]
   public class RegressionProblem : DataAnalysisProblem<IRegressionProblemData>, IRegressionProblem, IStorableContent {
     public string Filename { get; set; }
Index: trunk/sources/HeuristicLab.Problems.DataAnalysis/3.4/Implementation/TimeSeriesPrognosis/TimeSeriesPrognosisProblem.cs
===================================================================
--- trunk/sources/HeuristicLab.Problems.DataAnalysis/3.4/Implementation/TimeSeriesPrognosis/TimeSeriesPrognosisProblem.cs	(revision 12485)
+++ trunk/sources/HeuristicLab.Problems.DataAnalysis/3.4/Implementation/TimeSeriesPrognosis/TimeSeriesPrognosisProblem.cs	(revision 12504)
@@ -27,5 +27,4 @@
   [StorableClass]
   [Item("Time-series Prognosis Problem", "A general time-series prognosis problem.")]
-  [Creatable("Problems")]
   public class TimeSeriesPrognosisProblem : DataAnalysisProblem<ITimeSeriesPrognosisProblemData>, ITimeSeriesPrognosisProblem {
     [StorableConstructor]
