Re: Mention how to select just those headers shown, but without the numbers

> (info "(mailutils) Specifying Messages") says
>      ':n'
>           Selects all recent messages, i.e.  the messages that have not
>           been neither read not seen so far.
>                               ^nor

Fixed.

> Also please mention or link to what the difference between read and seen
> is.

Will do.

> Also please mention, how when one is scrolling in pages of 20 messages,
> how to say "delete all these shown", without the numbers.

In other words, you need a notation that would allow to apply any mail
command to the messages displayed by the recent 'h' command, right?

Regards,
Sergey