.TP
.IR <num> :\-N
Up to
+.IR N ,
+where
.I N
-messages beginning with (or ending with) message
+must be a positive number, messages beginning with (or ending with)
+message
.IR num .
.I Num
may be any of the pre-defined symbols
.B next
or
.BR last .
+The + can be omitted.
.PD
.TP
.RI first: N
.RI next: N
.TP
.RI last: N
-The first, previous, next or last
-messages, if they exist.
+As many of the first, previous, next, or last N messages that exist.
+As above, N can be preceded with - to end the listing at the specified
+message, or with an optional +.
.PD
.PP
Commands that take a folder name