Features / Usability

Hi all, and thanks in advance for pointing me in the direction to look. What I'm trying to do is add a custom field to a Tracker, "Player Name", which can be chosen from a drop down list. I then need to append the next number in that series to the end of the name. i.e. - SomeName1234 (next would become SomeName1235), AnotherName1004 (and this next would be AnotherName1005). What I can't seem to locate in the scripts is where the tracker fields get added to the DB. If someone can point out what script(s) I need, I can take care of the rest.