[Users] How can I display latest messages without auto selecting one of them?

[Removed GDPR]

> There' an "Open message when selected" frame with a bunch of
> checkboxes. They control after which actions a selected message also
> gets opened.

Thanks. I unchecked "When opening a folder". That still highlights the
message in the list but doesn't mark it as read.

Is there a way not to highlight it at all (but still auto-scroll the
list to the latest one)?