You may find the bulk availability option extremely handy here. Navigate to your products list, and select the category of a store, select all the products in the category and select "set availability" in the bulk dropdown menu and click "Apply".
Tick the box for "Global store availability rule" and select "The bulk selected products are not in any store by default", Then tick the box for "Individual store availability rules", press the blue + symbol and select your store and then save.
Because the products are now available to this one store only, the category will not be visible in any other store.
In the new update you have the option to turn off the supplier cost when quoting, sometimes we need it, but other times when customers are viewing items on the screen it would be handy to have this off. Just as an idea is it possible to
black out the prices but when the view suppler cost buton is pressed then becomes visable. See attached
Also getting more complicated, we have multiple suppliers who are the prefered suppliers selling the same items to us , would be great to be able to have 2 suppliers for the same product and then deco decides who is the cheapest and decides which supplier purchase order to add the item to