I am assuming, from the number of your posts (1) so far that you are a "newbie" and may have made some of the same layout creation errors common to all newbies (including myself when I started). I don't know anything about the mobile versions of Trainz but on the desktop versions you must attach an active industry asset to the track (where you will load coal and lumber) for the "Drive To" command to work and the industry to show up in the "Drive To" list. Probably the best to use is the Multiple Industry New asset.