On the tab "Availability", there should be first a description:
"Enable the workflow only if the following descriptions are met:"
Then, the following items should be present:
- Current user has one of the following permissions
- Current document has one of the following types
- Current document has the facet
- Current document has lifecycle
- Current document path starts with
- Current document is
- Current user is member of
- Current user is administrator
- Custom EL expression