Comment 12 for bug 669918

Hello Nizamov,

the option to change the transport priority manually is the same way as it was already done in Settlers II. It's just an option for experienced players - so it should not make it more complex for beginners to start with the game.

Therefore I just suggest it to do it in the way also SirVer suggested already:
using a penalty to delay the current FIFO principle based on the user defined transport priority.

This way you can influence the transport priority, but the whole transportation won't totally stuck if you forget about it (e. g. for beginners).