How to create cycling treks using rail trails

It works for me , I use waypoints & poi alone the route I'm creating.

The cycling option in route planning is the transport option you are using when you plan between 2 way points, eg, you can either use a vehicle, cycle or walking.
What is interesting, is that the route between these the two way points will be relevant to each mode of transport..ie a car will go a different route than a bicycle or walking.
So if the route between two way points, is difficult to plan under the transport mode of"cycle"..because the Traveller App is auto picking a different route to what you want to travel, due to the mapping data..ie some tracks may be closed to cycling but not to walking. So try using "walking" and put in couple more way points between these two designated waypoints and see hoe that goes.

Thanks everyone for your thoughts. I’ve been playing with the great southern rail trail here in Vic. It meanders between towns and often alongside major roads. I get that the rail trail has breaks as it enters towns which includes short road sections. I am able to force it to use sections of the rail trail by creating waypoints. However, the number of points I need to make gets tedious very quickly. In practice, I don’t need a detailed route to follow it but it is an interesting exercise. I have tried something similar with google maps and the way it generates a trek/route is different. It makes many points along the way that enables you to grab a section of the trek and manually drag it across to a road or track that you want to travel. This then forces the map to recalculate. This is much more intuitive and easier to do and would be great in EO

Thanks Nick, I must confess that I haven’t tried the walking option. I’ll have a play with that. I do like that you can adjust your target average speed which is a great ‘fine tune’ feature. I’ll try exporting some GPX files to see how many data points the trek feature is generating just out of interest.