Just join the Hostgator baby plan, everything go well except this issue...

I would like to create a virtual directory that will point to a same DIRECTORY,
For example,

abc.com/common -> Public_html/common
123.com/common -> Public_html/common
xyz.com/common -> Public_html/common

abc.com is the main domain, 123.com and xyz.com is the add-on domain, since they both restricted on their own directory, is hostgator support this kind on issue?

Thank you very much
Roy