Organizing Dates on Invoice

Is there a way to organize dates once on an invoice? Do I have to remove everything, and then add them in order? ie: I had prepared invoice so it would be ready to have it for the weekend. The client added a booking on Wednesday between 2 previously scheduled visits. When I add in the Wed it doesn’t go in date order, it goes to the end. Because client is booked 2x a month, this happened multiple times and the invoice has dates bouncing back and forth. Thanks!