Specific projects (these are teaching courses in our system) are paid through paypal, all courses have a unique title that can be searched e.g. searching for "14th" brings up all the delegates who have paid for the "Uropathology EQA meeting and 14th BAUP AGM "
I would like to allocate all these to a project (Course) "AGM Nov 2019". Provided a unique identifier is used for each project sale it is easy to bring up a list of all sales for a particular project (course) . However the only way to add a project to each is by opening each one in turn and editing it. It would be good, and save a lot of time, to be able to allocate a project to all the invoices in a single function so the invoices can be edited in bulk.