[MM3-users] mailman3 OWNERS_CAN_ENABLE_PERSONALIZATION option

I am trying to change email "To" field to user's email instead of mailing list's email. e.g. "To: <user@gmail.com>" instead of "To: <mailman-users@mailman3.org>"

I looked around old mailman configs they mentioned about adding

OWNERS_CAN_ENABLE_PERSONALIZATION option in mm_cfg.py

is this feature still available in mailman3 ? Can I do it via Postorius or REST API?

Thanks.