How to create cascade charts excel 2010

I am a statistician and I would like to create a cascade chart that would create and show all bars bridge from one end to the other. However, I have a negative value for my equations and I am wondering if it will show on the cascade chart excel that I am currently using. I use the 2010 version of excel cascade chart. Would it be possible to have the bars still bridged from one end to another with the negative values for my data?
