Change Days Before First Purchase Report to Days Before Purchase Report (ongoing)

I hate to compare to GA, but they have this.  SiteCatalyst is still better, but sometimes there's a report or two that is so useful that it's surprising that it isn't in SiteCatalyst out of the box.

Days Before First Purchase Report is good, but I want to be able to see the ongoing Days Before Purchase.  Then I would like to use segments to look at first time purchasers or anything else it's capable of showing.

I'd also like an ongoing Visits Before Purchase as well.