Gapless Asset Numbering for each corporate book

 Dear Friends,

We are implementing FA ( R12) for our client.

As per the FA user guide, only one numeric sequence can be used for automatic asset numbering across an Oracle instance and some of the sequence values may be lost. But our client wants the following:

1) Gapless Asset Numbering
and
2) Different Numeric sequence for each of the corporate book.

How can we achieve this?

Thanks and Regards,

Pranab