When adding guests manually on the admin side, there is the option to add [red +] line items/guests to an invoice - but I am told this will not list the persons name even if the precursor (Guest 5) is added. Following the sequence of Update invoice- Event registration - Add guest- Save is neither intuitive or straightforward and might be simplified by a drop down in the line item box [as there are only so many choices based on the registration types]