a manual helps

google makes it easy to find specific answers.
https://manuals.ootpdevelopments.com...ulation_module
or, you simply don't manage each game and let the sim play out. the module will probably allow for larger samples in a shorter period of time -- not 100% sure if it is 1:1 bit identical process, though.
i.e. is it considering year-to-year development or just running 1000games based on current context? that type of stuff may or may not make it useful for whatever you are trying to do.
you can watch any game play out. you can re-watch any game if you keep the right data. the manual can help wtih that too.
"As the 2019 season isn't included in this part of the game, how could I replicate what the Historical Exhibition allows for two teams from within the current season?"
A: sim module?
can't be included since it hasn't happened (at time of release.) I haven't tried a
"live start", but maybe that is what you are looking for, if you want 2019 results from RL?