When I select a rubric as the assessment form for a workshop in Moodle 2.2, it has 4 levels. I don't see any option to add a level like I see when I add an assigment and create a rubric within that. Is there someplace I'm missing a setting to allow this.
Do you mean add an extra criterion? There is a button to add more after the 4 there by default if that's what you mean. Also - the layout for "rubrics" in assignments is not the same as "rubrics" in the workshop module.
No, I mean add level of grade. By default there are 4 levels per criterion. If I want to add a fifth level (0,1,2,3,4, and 5) there is no option to add a level like you do with an assignment rubric.
Just define all 4 levels and save + continue editing. New blank slots should load for you (IIRC). Rubric editor in Workshop still lacks that shiny new interface that Advanced grading methods offer.