How to do that? I ran TSW 2 from disc, installed it with all dlcs. Tried to add the base TSW 2 routes with no success. Other routes worked (online buys). Until yesterday i had a download button for these 3 routes, but got an error message when i tried to download (Aachen, Bakerloo, Sand Patch Grade). Now this button is gone and my only option is to buy them. Please help...
Have a read of this thread. You will need to follow the instructions there. https://forums.dovetailgames.com/threads/is-your-preserved-collection-on-disc-read-this.25166/