Ive been on Trainz 12 for years, not interested in the built in routes, on 12 they can be removed from the opening list by disabling them in CMP. Can this be done in Trainz New Era?
I haven't used T:ANE for some time now but its Content Manager (CM) is identical in appearance to the CM in TRS19. You can disable any assets, including built-n routes, in CM.