.* Select all of the messages in the list.
Messages that you've selected are marked by a '>'.
The selections are cumulative. This means that once you have selected some
messages, you can select some more. (Subsequent selections do not wipe out
previous ones.) This is good, because if the messages you want to select are
on different pages, you can select the ones on one page and then go ahead and
select more on other pages.
Select messages for subsequent action (e.g., delete, filter, forward, later,
print, save, or terminate) by entering a period and then the message sequence
number(s) in any of the following ways:
.n Select one message. For example: .5
.n-m,a,c-d Select several messages. For example: .1,5 or .1-9 or
.n- Select all messages from this one onward. For example: .6-