Invoice prefixes for the new year - 2018

I am finding in FRED that I have to issue new invoice prefixes now that the year has changed from 2017 to 2018. If I do not do this then I get an error : "Missing invoice prefix" when I try to add credit to a registrar account using the #fred-admin --invoice_credit command I am having to do this for each zone which is painful because I have 10+ zones. Is there a way to update this automatically when the year changes ? Additionally, is there a way that I can run the #fred-admin --invoice_credit command for a zone and land on the correct prefix every time ? In many cases when I run the command #fred-admin --invoice_credit I get the error DEATAIL: Key (prefix)=(interger) already exits and I have to run the command a few more times before I land on an interger that the command accepts. How can I get around this and land on the correct interger for the command without having to repeat it? Regards, Paulos ====================== Dr Paulos B Nyirenda NIC.MW & .mw ccTLD http://www.registrar.mw --- This email has been checked for viruses by AVG. http://www.avg.com -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.