Allow the configuration of Gift Card formats

The ability to switch customers to Linga/Cloud is hindered when a site wants to import their gift cards and the ipads won't read the 3rd party format of the cards.  Currently, Linga/Cloud only allows for a string of numbers.  Some/most card formats include characters.  What I would request is the ability to set the format of the gift card in the back office.  Example:

Track number

Start character

Length of string (number of characters)

This will allow us to have more ability to import customer gift cards and allow swiping.

Thanks for your consideration