1) Change menus to use a custom menu instead of standard
2) Open "Manage > Database" and go to the Relationships tab
3) Click on a relationship
4) Use CTRL-O to open it -- DOES NOT WORK
5) use arrow key to move to an attached table occurrence (or click on it directly with your mouse)
6) Use CTRL-O to open it or CTRL-D to duplicate it -- DOES NOT WORK
All works fine using the standard menu set.