I want to ask three questions related to mod_nibble bills, as I'm listing down below;

1- Can we select/use dynamic tables for billing using nibble bill?
2- Can we define more than two tables and attributes in nibblebill.conf.xml?
3- As Nibble bill is use to deduct amount of user account, Can we deduct minutes instead of cash? Because my case is, if a user buy a package and I only want to deducts his/her minutes. How we can resolve it by nibble bill? / What other way we can resolve it?

Kindly advise soon.

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Regards,

Ahmed Munir