Hello, I have setup options on my product but how do i set/have it show how many are in inventory of each item. For example if i have 3 red shirts and 4 blue how do I have this display and how do I set this?

Also for shipping the items is sell are very light is there a way to have CS-cart not auto change it to 0.00?

This should help point 1

And point 2, set your weight as something light say ā€œgā€ from grams in admin settings, then add the weight in grams to all your products via csv file and import them