Newbie question and probably a stupid one at that. Can I add cars and or engines to an activity that I have downloaded from Train-Sim.com? I have numerous activities which I would like populate with cars or engines in the yards and some side tracks. Can I add them to an activity and if so how? I've never really tried to use the templates but I have resolved to try to learn to use them. Hopefully, they're not as complicated as they appear - I am rather stupid in my old age.
Thanks, Rich