Change default parameter values

[brandon-gradient]

This is mainly in reference to #54 (comment) where you can't have the same default value in a parameterized BP since they will be merged.

I know this is probably a nit-pick but If I was going to pick on to be 4 as the default it would be the chests per wagon since your book almost exclusively uses this number of chests per wagon in all the areas I can think of off the top of my head, where as the number of cargo wagons a given stop is meant to handle is actually very variable. The book has 1, 2, and 4 as built in options for number of wagons.
I would suggest if you're ever inclined, to switch them. This then means cargo wagons default could be 2 (pic has 2 there but the user who took it had already modified that value, default is 4) since it seems 1 is also already taken. Or -2 if you want to be explicit like you were attempting to by having chests per wagon be -2

[Bocian-1]

Yeah, I'll do that. I didn't expect so many people to see a negative number and not realise something has to be done with it :p

[Bocian-1]

Implemented in v2.19.0