Once you create your first Fixed fare route at the back end > Dashboard > Fixed fare routes you will be able to Duplicate or Copy reverse that route.
Both buttons are available in the top button tool bar.

Duplicate button - duplicates selected Fixed fare route in Unpublished state. You will have to go in and change parameters that are different eg. Pick up or Drop off, individual car prices etc. Select Published: Yes before Save

Copy reverse button - duplicates selected Fixed fare route in Unpublished state but with reversed Pick up and Drop off destinations. Click on the title to go to edit screen and change state to Published and anything else that needs changing eg. individual Car prices.