Directly creation of ALV Variant in Production - Whether possible

Hi Friends,

I have a requirement to display few more fields for the standard dunning report . The server version is 4.6C .

All the required fields are available in field catalogue. I have to create a new variant to access the new fields also.

I am totally new to ALV Programs related activities.

My question is -

Can I create the variant directly in Production , or I have to create the variant in Dev and move to TST and Production.

Please advice.

Thanks in advance,

Vengal Rao.