Hi,
To use the sub-mix try this:
- In the FMOD Audio Link Settings make sure there is a default
Link Event:

- Create an
FMOD Audio Link Settings:

This should default to our Audio Link Settings Event. - Now in the new sub-mix make sure to assign the new settings and enable
Send to Audio Link:

I hope that helps with the sub-mix.
In the case of the weather system, could I grab its name in the UE store? Depending on how it is triggering it’s sounds will slightly change the implementation.