[flexcoders] flexstore help

[nikiokos]

I have made a application based on flexstore,I would want some of the 
products which belong in more from one categories, but in 4 four 
columns view i want to see them just 1 time.if I register a product to xml 
data file for 2 times and i give to it different category,the product is 
presented in 2 categories but in 4 columns view presented 2 times.
Please Help
Thanks