Truncate channel for only 1 user

[JohnLaibach]

Hello,

I have a requirement to truncate channel messages for only 1 user (the user initiating the truncating).
Was looking through the documentation and tried channel.truncate() but that deletes the messages for both users.

And second question:
in the docs it says The default behaviour is to hide messages when channel is truncated. To permanently delete messages, set the hard_delete option to true.
When hard_delete is set to false, where are the truncated messages visible?

Tnx, ahead!