For linked issues, display specific link type(s) on story card in backlog view (blocks, blocked by)

[Kellie Mingus]

Is there a way to  capture the Issue key or destination issue key in a custom field so I can display on the issue card the specific type(s) of links, along with linked issue keys?  I am not able to create a custom field for an issue key from the custom fields menu.  This would also have to be able to add new keys/link types since multiple links can exist on an issue.