How do I create multiple markers in the text that refer to the same footnote?

Hi,

I'm working in Pages '09 and I want to add the same number-marker multiple times in my text, referring to the same footnote. I could just write the same number and stylize it as superscript, but that way the number won't change dynamically if I add more footnotes on an earlier spot in the text...

Does anyone know how to do this!

Thanks a lot!