Opus 9.0.0.1 just came out which adds a feature to allow this:[ul][li]...[/li]
[li]The Copy ZIP and ADDTOZIP commands can now accept the CREATEFOLDER argument to specify the name of the destination Zip file[/li]
[li]...[/li][/ul]
Full list of changes here: [Directory Opus 9.0.0.1)
I've posted an example button here: Create Dated Zip