How to Organize Posts By Shortcode

Hello! First off, AWESOME Plugin! I got it working in no time.

I do have one question. We would like to use this plugin and organize it so a page shows JUST the posts associated with that custom field.

So instead of:

[geolocation]

I was thinking:

[geolocation category=”Whatever”]

This, of course, doesn’t work….do you know what we’re doing wrong?

Thanks for the help in advance!