We need help debugging this from the KWWidgets team. Doubleclicks work if in the kwwidgets examples, but not when used from slicer (same lib, same os, etc). This could be related to the theming or some other slicer-specific setup.

Brad - is this still broken for you? We should bring this up again with Sebastien and Yumin.

Sebastien was working on a fix for this. I'm assigning it to him to provide an update for this bug report.

Workaround is to not use collapsible frames for these for now...

Workaround is to use the enter key to edit the entries.

Wendy and Nicole will work together to find and fix any multicolumn list boxes inside collapsable frames.

From the Slicer3 directory:

find . -name *.cxx | xargs grep vtkKWMultiColumnList | grep New
./Modules/QdecModule/vtkQdecModuleGUI.cxx: this->MultiColumnList = vtkKWMultiColumnListWithScrollbars::New ( );
./Modules/FourDAnalysis/vtkFourDAnalysisGUI.cxx: this->PlotList = vtkKWMultiColumnListWithScrollbars::New();
./Modules/FourDAnalysis/vtkFourDAnalysisGUI.cxx: this->InitialParameterList = vtkKWMultiColumnListWithScrollbars::New();
./Modules/FourDAnalysis/vtkFourDAnalysisGUI.cxx: this->ResultParameterList = vtkKWMultiColumnListWithScrollbars::New();
./Modules/EMSegment/Wizard/vtkEMSegmentAnatomicalStructureStep.cxx: this->ColorMultiColumnList = vtkKWMultiColumnListWithScrollbars::New ( );
./Modules/EMSegment/Wizard/vtkEMSegmentNodeParametersStep.cxx: vtkKWMultiColumnListWithScrollbarsWithLabel::New();
./Modules/EMSegment/Wizard/vtkEMSegmentNodeParametersStep.cxx: this->ClassAndNodeList = vtkKWMultiColumnList::New();
./Modules/EMSegment/Wizard/vtkEMSegmentIntensityDistributionsStep.cxx: vtkKWMultiColumnListWithScrollbarsWithLabel::New();
./Modules/QueryAtlas/vtkQueryAtlasSearchTermWidget.cxx: this->MultiColumnList = vtkKWMultiColumnListWithScrollbars::New ( );
./Modules/QueryAtlas/vtkQueryAtlasUseSearchTermWidget.cxx: this->MultiColumnList = vtkKWMultiColumnListWithScrollbars::New ( );
./Modules/QueryAtlas/vtkQueryAtlasGUI.cxx: this->CurrentResultsList = vtkKWMultiColumnListWithScrollbars::New();
./Modules/QueryAtlas/vtkQueryAtlasGUI.cxx: this->AccumulatedResultsList = vtkKWMultiColumnListWithScrollbars::New();
./Modules/NeuroNav/vtkNeuroNavGUI.cxx: this->PointPairMultiColumnList = vtkKWMultiColumnListWithScrollbars::New ( );
./Modules/OpenIGTLinkIF/vtkOpenIGTLinkIFGUI.cxx: this->ConnectorList = vtkKWMultiColumnListWithScrollbars::New();
./Modules/PatientToImageRegistration/vtkPatientToImageRegistrationGUI.cxx: this->PointPairMultiColumnList = vtkKWMultiColumnListWithScrollbars::New ( );
./Modules/FetchMI/vtkFetchMIMulticolumnWidget.cxx: this->MultiColumnList = vtkKWMultiColumnListWithScrollbars::New ( );
./Modules/FourDImage/vtkFourDImageGUI.cxx: this->FrameList = vtkKWMultiColumnListWithScrollbars::New();
./Modules/Meshing/BuildingBlock/vtkKWMimxMergeBBGroup.cxx: this->MultiColumnList = vtkKWMultiColumnListWithScrollbars::New();
./Modules/Meshing/BuildingBlock/vtkKWMimxImageViewProperties.cxx: this->MultiColumnList = vtkKWMultiColumnListWithScrollbars::New();
./Modules/Meshing/BuildingBlock/vtkKWMimxViewPropertiesGroup.cxx: this->ElementSetList = vtkKWMultiColumnListWithScrollbars::New();
./Modules/Meshing/BuildingBlock/vtkKWMimxAssignBoundaryConditionsGroup.cxx: this->MultiColumnList = vtkKWMultiColumnListWithScrollbars::New();
./Modules/Meshing/BuildingBlock/vtkKWMimxViewProperties.cxx: this->MultiColumnList = vtkKWMultiColumnListWithScrollbars::New();
./Modules/Meshing/BuildingBlock/vtkKWMimxSurfaceOperationsMenu.cxx: this->ObjectList = vtkKWMultiColumnList::New();
./Modules/Meshing/BuildingBlock/vtkKWMimxEditBBGroup.cxx: this->MultiColumnList = vtkKWMultiColumnListWithScrollbars::New();
./Modules/Meshing/BuildingBlock/vtkKWMimxMergeMeshGroup.cxx: this->MultiColumnList = vtkKWMultiColumnListWithScrollbars::New();
./Modules/Statistics/LabelStatistics/vtkLabelStatisticsGUI.cxx: this->ResultListWithScrollbars = vtkKWMultiColumnListWithScrollbars::New();
./Modules/RealTimeImaging/vtkRealTimeImagingGUI.cxx: this->PointPairMultiColumnList = vtkKWMultiColumnListWithScrollbars::New ( );
./Modules/PETCTFusion/vtkPETCTFusionGUI.cxx: this->ResultListWithScrollbars = vtkKWMultiColumnListWithScrollbars::New();
./Modules/ProstateNav/Wizard/vtkProstateNavStepVerification.cxx: this->MultiColumnList = vtkKWMultiColumnListWithScrollbars::New();
./Modules/ProstateNav/Wizard/vtkProstateNavTargetingStep.cxx: this->MultiColumnList = vtkKWMultiColumnListWithScrollbars::New();
./Modules/CollectFiducials/vtkCollectFiducialsGUI.cxx: this->FiducialListMultiColumnList = vtkKWMultiColumnListWithScrollbars::New ( );
./Base/GUI/vtkSlicerFiducialsGUI.cxx: this->MultiColumnList = vtkKWMultiColumnListWithScrollbars::New ( );
./Base/GUI/vtkSlicerROIGUI.cxx: this->MultiColumnList = vtkKWMultiColumnListWithScrollbars::New ( );
./Base/GUI/vtkSlicerMRMLSaveDataWidget.cxx: this->MultiColumnList = vtkKWMultiColumnListWithScrollbars::New ( );
./Base/GUI/vtkSlicerColorDisplayWidget.cxx: this->MultiColumnList = vtkKWMultiColumnListWithScrollbars::New ( );
./Base/GUI/vtkKWCheckBoxSelectionDialog.cxx: this->MultiColumnList = vtkKWMultiColumnListWithScrollbars::New ( );
./Base/GUI/vtkSlicerModulesStep.cxx: this->ModulesMultiColumnList = vtkKWMultiColumnListWithScrollbars::New();
./Base/GUI/vtkSlicerColorEditWidget.cxx: this->MultiColumnList = vtkKWMultiColumnListWithScrollbars::New ( );
./Base/GUI/vtkKWMatrix4x4.cxx: this->MultiColumnList = vtkKWMultiColumnList::New();

Closing. Slicer3 is not being developed anymore.