aging categories in Peachtree Accounting version 2012

I am not the usual user of this software, but have been asked to help out, so bear with me... We are trying to customize our accounts receiveable report to include more than the standard aging categories, which in our version seems to be limited to 0-29, 30-59, 60-59 and >90 days.  We would like to have 90-119, 120-179 and > 180 days instead.  Is this possible?  I can't find a way to change these anywhere.  Are there certain versions of the software that can change these and others that can't?  I can find where we could add one column that shows the actual number of days, but not how to get them to do the aging for those categories.  Is there a way to modify the number of aging categories either in the defaults for the account or the aging report?