private void showScriptPositionRuler(boolean show)
    {
        IColumnSupport columnSupport = getAdapter(IColumnSupport.class);
        if (columnSupport != null) {
            RulerColumnDescriptor positionColumn = RulerColumnRegistry.getDefault().getColumnDescriptor(ScriptPositionColumn.ID);
            columnSupport.setColumnVisible(positionColumn, show);
        }
    }
Build and update icon and title
plugins/org.jkiss.dbeaver.ui.editors.sql/src/org/jkiss/dbeaver/ui/editors/sql/SQLEditor.java