BUG: Activation of some tabs when all meshes are deselected and when you load a new file
BUG: Activation of some tabs when all meshes are deselected and when you load a new file

laurapascal/ShapePopulationViewer,laurapascal/ShapePopulationViewer,agirault/ShapePopulationViewer,agirault/ShapePopulationViewer,NIRALUser/ShapePopulationViewer