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/DialogMarkerFilter.java
* 	is selected.
         */
        IWorkingSet getWorkingSet() {
            return (IWorkingSet) button.getData();
        }
        /**
         * Sets the working set filter selection.
         * 
         * @param selected true=a working set filter should be used
         * 	false=no working set filter should be used
         */
        void setSelection(boolean selected) {
            button.setSelection(selected);
            if (selected) {
                anyResourceButton.setSelection(false);
                anyResourceInSameProjectButton.setSelection(false);
                selectedResourceButton.setSelection(false);
                selectedResourceAndChildrenButton.setSelection(false);
            }
        }
        /**
         * Opens the working set selection dialog.
         */
        void selectPressed() {
            IWorkingSetSelectionDialog dialog = PlatformUI.getWorkbench()
                    .getWorkingSetManager().createWorkingSetSelectionDialog(
                            getShell(), false);
            IWorkingSet workingSet = getWorkingSet();
            if (workingSet != null) {
                dialog.setSelection(new IWorkingSet[] { workingSet });