[ic] Restricting User views to products they own

[ICTech]

(1)  Is it a good idea to keep multiple stores (small stores with 5 - 50
items) in one Catalog?  And add a username for each store owner and make
them a member of the Merchandising & Orders/Sales group.
My challenge is limiting each store owners to view only the products they
entered.  Reading through the Interchange Manual, I found that I could use
the TableRestrict directive in Catalog.cfg, but I am not sure if it is the
best way to do this.

(2)  Is there a way to edit Catalog.cfg through IC edit, or through File
manager without affecting the file attribute?

Thanks!
 Tina