When you set this way you should set the value not the key or both. If you want to set the key and display the value use the new formatter option – see the news and docs.
Use setCell to set a custom attribute, not css or class. That what you do can not work. You should use for a cell atribute vertical-align= bottom or what you want.
What does not work? How look your data. Remember the last item should not end with ; – this will break the select. To make a test just put a string and see what is it –
