functionalStoic

@vinster Take a look at this page for details of LDML formatting:
http://www.unicode.org/reports/tr35/tr35-31/tr35-dates.html#Date_Format_Patterns
 
It'll allow you to create more flexible date snippets than the default dynamic placeholders:
https://www.alfredapp.com/help/features/clipboard/dynamic-placeholders/
 
Cheers,
Vero

That’s a nice stopgap solution, but I think I’d still like to see it embedded as an option right in the list filter action. Alfred obviously has fuzzy matching capabilities that are highly performant, hopefully it wouldn’t be too difficult to extend it into List Filters. 
 
Thanks for pointing this workflow out, though; I’ll probably use it for a couple lists until there’s some sort of resolution to this request. 

Alfred uses OS X's index, so adding paths to the search scope tells Alfred where you want him to look. Adding the external drive is the right way to include it in your Alfred search.
 
You could also create a file filter workflow if you want to specifically search for files on your external drive without seeing anything from your main drive. Here's a tutorial on creating file filters:
http://blog.alfredapp.com/2014/04/24/tutorial-creating-an-alfred-workflow-without-a-single-line-of-code/

Here's a quick workflow that transforms the given string to lowercase and copies it to the clipboard for immediate use.
 
Usage:
lowcase <STRING>    
Hope somebody else finds this useful
 
 
Download.