Limited number of currency or number type formula custom fields.

Limited number of currency or number type formula custom fields.

Hi,

i've spent the last 2 weeks implementing and configuring Zoho CRM, Zoho Support, Zoho Invoice, Zoho Vault, Zoho Docs & Zoho Mail for my organisation.... only to discover this today:   " You cannot create more than 8 number or currency type formula custom fields " while i was setting up Leads in Zoho CRM.  :-((

Is there any chance you can increase this limit to 12 ??

We really need this as this limit of 8 is taking away all the use of Zoho CRM for us!  We just can't do without the extra 4 number or currency type custom fields.

Also, i'd need to know if this limit is per module?  Or is it a global limit for the entire Zoho CRM platform? 
If there's no way you can possibly change this; can you please explain why?

Much appreciated,

Thierry