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/MarkerFilter.java
IResource[] getFocusResource() {
        return focusResource;
    }
    /**
     * Sets the focused resources.
     */
    public void setFocusResource(IResource[] resources) {
        focusResource = resources;
    }
    /**
     * @return
     * <ul>
     * <li><code>true</code> if the filter is enabled.</li>
     * <li><code>false</code> if the filter is not enabled.</li>
     * </ul>
     */
    boolean isEnabled() {
        return enabled;
    }
    /**
     * @return
     * <ul>
     * <li><code>true</code> if filtering by marker limit is enabled.</li>
     * <li><code>false</code> if filtering by marker limit is not enabled.</li>
     * </ul>
     */
    boolean getFilterOnMarkerLimit() {
        return filterOnMarkerLimit;
    }
    /**