Hi Steve

When you add an assignment (not 2,2) there is a drop-down with "simple direct grading, marking guide, rubric).  If you Save and display you get the rubric screen (design from scratch or use template).

If you have already added an assignment with the rubric option selected, when you edit the assignment settings a menu item appears in the menu - advanced grading which will take you to the same rubric screen.

Templates are system wide once created I think.

HTH

Richard