A:
The history files do not have the option of specifying a separate number field for the bonus; the entire file will have one number range, which is usually the range of the main set of numbers.
The numbers outside the range are never drawn as bonus numbers, so when you set the file to use Bonus Only, you can safely ignore any mention of these higher numbers in the charts.
They will come up in Smart Picks, but only if you choose more than the total of numbers the bonus actually uses, since the unused numbers are always at the end of the list.
For example, England's Thunderball game is a 5/39+1/14 game.
If you set to use bonus only, you will still see numbers 1-39 in the charts, but only 1-14 will have statistics, since 15-39 are never drawn as a bonus.
