Source indentation

ok i wanted to reformat the source and i know how
http://docs.cksource.com/CKEditor_3.x/D ... Formatting

i am now asking myself if i can set double or triple indentation for some elements. i mean i can define

writer.indentationChars = '\t';

but that is used globally for every element

Sample, lets say i want the "h3" to have twice the indentation but not theother tags "p", "pre" and so on.

CKEDITOR.on('instanceReady', function (ev) {

    var tags = [
        'p', 'pre', 'code',
        'ol', 'ul',
        'br'
    ];

    for (var key in tags) {
        ev.editor.dataProcessor.writer.setRules(tags[key],
            {
                indent:false,
                breakBeforeOpen:false,
                breakAfterOpen:false,
                breakBeforeClose:false,
                breakAfterClose:false
            });
    }

        ev.editor.dataProcessor.writer.setRules('h3',
            {
                indent:true,
                breakBeforeOpen:true,
                breakAfterOpen:true,
                breakBeforeClose:true,
                breakAfterClose:true
            }
        );


});