There are now some optional configuration that you can provide on top of the mandatory items that are described on the main page.

In the [download] section of trac.ini you can include

Option	Default	Description
title	Downloads	sets the page title
nightly	nightly	specifies the name of the nightly directory (if one is present)
showMD5	false	set the visibility of calculated md5 sums - if true the md5 will be generated when the page is loaded
writeMD5	true	write the md5 sum to disk to speed up page draws, it is recommended and will only be used if showMD5 is true
sort	false	sort the directories and files using the predefined rules (when set to true)
file-order	alphabetical	the sort order for files - default is alphabetical, alternative is "age" which is the file's time stamp, newest first (requires sort to be "true")
category-order	normal	the sort order for categories - default is normal (lowest at the top), alternative is "reverse" (or "rev") for newest first (requires sort to be "true")