There are multiple areas in Genie with drop-down menus and you may find that some of the options are incorrect or no longer applicable. To remove an option, open the menu that you want to delete the option from. Hold down Alt/Option on your keyboard and then click the entry you wish to remove in the drop down. This should delete it from the list.
For examples of which menus this will work for, and other functions of this key, see our The Alt/Option Key article.