Issue Board List Filter on Blocked/NotBlocked

On Issue Boards I can add lists (columns) filtered on labels. We have scoped labels such as workflow::awaiting_dev, workflow::in_progress, workflow::in_review etc. The workflow::awaiting_dev list contains both Blocked and Unblocked issues. Is it possible to filter (into 2 lists one for Blocked and the other for Unblocked issues) or sort (with the Unblocked issues at the top)?

In the screenshot of the documentation for Blocked issues i can see what appears to be a list filtered by a Blocked label. I assume it is a built-in label that is used to power the Blocked icon on an issue. However i do not see this label in our GitLab