Inventory Software Enhancement

Our business uses an industry software program to manage our inventory, customers, vendors, and accounting. We have recently completed a company website that inventory can be sold on. My challange is that the product details of the inventory I sell on my new website provide much more detail than my company software can handle. Becuase of this, I have to manually add this additional detail information...this creates extra data entry for me. Thus, I need approx 25 fields added to my software program that will be able to be exported to .csv. The fields that are currently in place are exportable also, so I know the program has this functionality. I want the extra fields can be added as a tab. I would also like that this module can have the ability be turned on and off (meaning that when it is off, the extra fields will not be displayed and will non-exportable at that time). I would also need to be able to install the module on future upgrades to my software should I choose to upgrade it.