Termination Rate Import Mapper

In Version 2.3, I created a termination rate import with mapper, this allowed me to easily import/update termination rates from my carriers, with out having to edit/modify the format of their rate decks. I would like to apply this change to the v3.0 system. Below is the screen shot of what the mapper looks like, The table at the bottom is a few of the records in the said rate deck. This allows me.

If this is a mod that would go into the main distro let me know and I will get it completed.