Hey!

I'm unsure how to use the config for blacklisting generation in dimensions, this one:
# Dimension Expression that will be checked for every single structure. Use this if you want to blacklist / whitelist specific dimensions that shouldn't have structures. [default: ]
S:universalDimensionMatcher=

It didn't work with dimension ID, so what does it accept?

Please refer to the wiki entry on expressions. There are concrete examples for blacklists and whitelists there.