I prefer to use the (Beta ?) version of
Routenoptimierung . Your device must be connected through HOME.
For a brief test I entered
Start: sidney, nsw
Destination: lithgow, nsw
Stop-overs: katoomba, nsw
and it works perfectly (as it is the Google map, no need to capitalise anything).
For English click on
en in the top right corner.
Make sure the Stop-overs (waypoints) are on separate lines and terminate with a
; (semi-colon).
Click on
start, left bottom.
The resulting trip will be displayed on a page with text in German only (if you click on
en again you'll end up with the start page but using the browser back button you will not have lost your data).
No matter the German
Under the Google route map it will display
Gesamtstrecke: (Total distance) in kilometres (143 in this example)
and
Zeit: (Time) 2 Stunden (hours) 35 Minuten (minutes).
No matter.
Click on the box [tomtom/itn] and follow prompts in HOME for saving.
The ITN file saved has a mile long name, starting with zrp.
Use Windows Explorer, open the itn folder and rename that new file to anything you like, making sure that the extension remains .itn.
Give it a try, it is really much easier to use than to explain.
