Hey, I'm a streamer and I want to give my viewers the option to turn on honks for a while. Is there a ability to toggle the train honks via LUA / console command?

Hello, I'm finally going to update this mod again. I'm adding the console commands you asked for!

Globally disable honks: /honk_disable
Globally enable honks: /honk_enable

If you have steam trains or cargo ships installed, you can control them separately:
/honk_[en,dis]able [diesel,steam,boat,ship]

The global enable/disable leaves the per-group enables alone. To force all groups to enable/disable:
/honk_[en,dis]able all