Can a custom module be tied into Invoice Product Details?

Can a custom module be tied into Invoice Product Details?

We are looking for a work around related to adding new fields to work with Invoice product details.  We need to be able to add new fields and do calculations.

We were wondering if we upgrade to Enterprise Edition will we be able to create a custom module that will connect to CRM Invoice product details?  What work around can we look at to enhance CRM Invoice product details once they are entered on an invoice?

Please see link below for other users needing the same functionality.

https://help.zoho.com/portal/en/community/topic/ability-to-add-new-fields-to-zoho-crm-invoice-details

Regards
Gilbert