FICAX-Tax invoice needs to be in sequence Numbering and with no gaps (seperate invoice number range for Non Tax Invoice)

Hi Guru's

We have following requirement to group tax and non tax relevant billing documents and invoice them separately

1. Tax Invoice number ranges needs to be in sequence and should have separate number range

2. Separate number range for non tax invoice as well.

Kindly advice how can we achieve this. we are using FICAX.

Regards,

John