Hai Would like to add a custom email in the dropdown in the sendEmail smar

Hai
Would like to add a custom email in the dropdown in the sendEmail smartservice node.
I guess we can add somewhere in custom properties , would someone tell the EXACT property to change.
we did change some notification emails, but that if any alerts or task appian uses that email but for send email node it does not use those emails.
I want something like dev_appian@mycompany.com and qa_appian@mycompany.com based on environment.
It helps business to differentiage QA vs PROD in UAT etc. I know that having a Prefix DEV/QA/UAT in Subject helps. thats the other option....

OriginalPostID-111990

OriginalPostID-111990