Klaxon
Have sorted out eAPIS. The upload/download of the manifeston the right box is a red herring you do not need it.
Start on the left box of page 1 and it will lead you through the procedure. My first go at it took 90 minutes with 2 crew and 4 pax. Note if you are a private flight the co-pilot has to be classed as a passenger. The time taken is the input of data. Once in should be quite quick and simple. My next attempt on Wednesday from Mexico to LA with same pasx and crew sp should be a breeze! will report back!