I'm not sure if this is what you're looking for but....
We have created custom fields that are hyperlinks. They can be selected from within Structure, and when a user clicks on them, it takes them to the hyperlink.
For example, we created a custom field called client profile.
It is a pick list with hyperlinks to individual pages for each client profile (these pages are within jira, but they are a hyperlink nonetheless).
When setting up the custom field pick list, you have to have the URL address.
Then when a user is in Structure, they choose to view the "client profile" field as one of their columns.
Now, when a client profile has been chosen, the field is actually a hyperlink that is actionable from the Structure view.
Does that make sense?
Does it help?