Altering an Era in trainz 22

[Jersey pete]

I have a problem that i cant work out. I have built a layout using TransDEM but wish to change the time period to 1930's to1950's in Britain no matter what I try i cannot seem to get the era to work on my layout i have altered the region kuid but that hasnt worked and added the new kuid at the end of the kuid table that hasnt worked either, I would be grateful if someone could help me thanks

[OddRails]

Hopefully you found an answer a month ago, but here's what I'm seeing:

There is an ECML route in TANEsp1 that has these values in the config file:

category-region "GB;UK"
category-era "1970s;1980s;1990s;2000s;2010s"

You can edit the era string to match your chosen era.
Is that the format you were using?