Related lists: can we set a default sort order?

[Guido1982]

I'm setting up some 'ListColumns' business maps, where I include the createdtime columns in each to bypass the dreaded record numbering, which doesn't allow us to sort (so we sort on createdtime to kind of get to the same goal). What I was wondering is: can I set that default sorting for related lists somewhere? Right now, it goes from old to new, where the oldest ones appear first (at the top) of the list. I would like to reverse that default order, or set some other custom ordering. Can that be set somewhere?