Theme component toggle whisper for a normal and staff member

Hello everyone, a long time i finding a feature that all user can reply toggle whisper their topic, but only user post topic and reply toggle whisper can be see their toggle whisper and staff member see this toggle whisper. Other user can’t see this toggle whisper.

Can we build this feature via theme component?
Thank you!

No, the whispers feature is designed for staff to use, and doesn’t store enough information to let regular users carry on private conversations like you suggest. Instead, use the New Message option when replying:

Screenshot of the New Message reply option