How to Sort Order of Collections

I'd like to custom sort the display of the collections page. Any tips greatly appreciated, thanks!

This is the page I am trying to sort:

If there's a field you want to order by, you can do it through the URL the same way as works for Items. For example, the following URL is the same page sorted alphabetically by collection title:,Title

Thanks John. I have been trying all variations of this, but can't seem to make it work. I did add numbers to the Dublin Core field Identifier & was hoping to sort the order that way, but it doesn't seem to be working.,Identifier

Any other tips you can provide are greatly appreciated.

I just made the Identifier field publicly display, so you can see that it is not in the right order

Ah, there it appears to be actually sorting by Identifier, it's just that the sorting doesn't quite work how your expecting.

Omeka stores and treats all the item metadata as text, so it's sorted as text. The upshot here is that Identifiers starting with "1" will sort before ones starting with "2," regardless of the number of digits, so you get orders like 1, 10, 11, 12, 2, etc.

The easy way around this is to just alter your identifiers so they sort correctly. For numbers, this generally means padding out with zeroes out to the maximum digit length you're using. In your case with just a handful of collections, just changing the single-digit identifiers to 01, 02, and so on, should do the trick.

That did the trick -- thanks so much!!