Desktop Traveller App on Mac using Opera

Can't help you with the Orange problem, sorry. I have not seen the blue arrow and if Orange is not in the nav list then I don't know what is going on to make the behaviour you have described.

2. In the app on the iPad, click the map layers icon top right (folded map). Scroll down to Treks and check the box. If you have many treks they will all be displayed but at least you'll get the one you want.

ALternatively, on the iPad in the map layers tool, scroll down to folders and uncheck it. Tap the word " None" to display the folders list. Tap the folder where the trek is stored to highlight it. Tap Apply. This will display only the trek(s) in that folder. Others not in the folder won't be displayed.

I haven't done much of this folder stuff but this is how I think it works. User Trevor David may be able to help more, and Michelle, of course.

Thank you all for your information, I think I am sorted now.
I went to the you tube navigation tutorial where my waypoints are listed of my trek with a plane icon (straight line) I overlooked the left swipe and press the green nav button to convert each waypoint to driving mode and of coarse this changes kilometres as well.
However over 2000 kms the ipad kilometres do not exactly match the hema map book. I'll see how it goes in practice.
Thanks again