Mass changes of DP Master Forecast Profile - Fiscal Year Variant

Hi Gurus,

I trying to find the way of changing Fiscal Year Variant in DP master forecast profile. We have around 50,000 msater forecast profile where most of them are user created GUID forecast profile. We are changing Fiscal year variant for our company (newly created) which require changing of master forecast profile as well. I beleive there is a way to change master forecast profile in table /SAPAPO/DP440G as one entry at a time but I trying to find a way for mass maintenance. Can you please help me.

Thanks in advance

Regards