Bug 82743 [Markers] improved problem filter needed (OR clauses)
when working with large workspaces I find the current problems filter not powerful enough. If I were able to AND and OR the conditions available from the UI then I would solve all my use cases. my most needed one is : I would like to see ERRORS anywhere in the workspace OR WARNINGS in the current selected project
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/DialogTaskFilter.java
org.eclipse.ui.views.markers.internal.DialogMarkerFilter {
    private DescriptionGroup descriptionGroup;
    private PriorityGroup priorityGroup;
    private StatusGroup statusGroup;
    private class DescriptionGroup {
        private Label descriptionLabel;
        private Combo combo;
        private Text description;
        private String contains = Messages.getString("filtersDialog.contains"); 
        private String doesNotContain = Messages
                .getString("filtersDialog.doesNotContain");