Aux tracks routing to Submixes

Hi,
I can't seem to find a way to have reverbs for different submixes (i.e a set of reverbs for different stems).
Upon creating a sub the option I have is to send it to masters, I want to avoid that to be able to listen and print the stems individually.
In a nutshell, I'd like to send my aux tracks to submixes, and then send those submixes to my masters.
Thanks,
Olivier.
I can't seem to find a way to have reverbs for different submixes (i.e a set of reverbs for different stems).
Upon creating a sub the option I have is to send it to masters, I want to avoid that to be able to listen and print the stems individually.
In a nutshell, I'd like to send my aux tracks to submixes, and then send those submixes to my masters.
Thanks,
Olivier.