Create Merge Tags for ALL Custom Fields within Specific Custom Post Type

Hi,

I am looking for a way to automatically create merge tags for all the custom fields within posts or custom post types. I want to be able to call field values stored within posts and display them within notifications, confirmation, and html blocks.

I've already been able to dynamically populate fields, with the logged in user's custom fields using {user:<i>custom_field</i>} (i.e., {user:employed}). But I don't know how to specify which post id to grab the field values from to use merge tags for rather than the user's profile.

I've already taken a look at the dynamically populating form fields documentation http://www.gravityhelp.com/documentation/index.php?title=Using_Dynamic_Population&oldid=933 and creating or mapping form fields with your own declared values/custom fields http://www.gravityhelp.com/documentation/page/Gform_field_value_$parameter_name, but none of these seem to answer the problem.

Help would be appreciated! Thanks.