Satish - Another helpful reply , You are definitely addicted to scn , we dont want you to get off this addiction 
Point 2 in issues and point 4 in enhancements : I think uploading from excel is a standard feature and we are using it - not extensively though .Any specific issues you came across
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If time permits can you give a simple example for enhancements Point 1 and point 2. . How can we simplify cvc creation process- we usually create cvcs from sales history and i think this is followed by most clients