Most commands optionally preceded by integer argument k.  Defaults in brackets.
Star (*) indicates argument becomes new default.

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<space>			Display next k lines of text [current screen size]
z			Display next k lines of text [current screen size]*
<return>		Display next k lines of text [1]*
d or ctrl-D		Scroll k lines [current scroll size, initially 11]*
q or Q or <interrupt>	Exit from more
s			Skip forward k lines of text [1]
f			Skip forward k screenfuls of text [1]
=			Display current line number
e			Start up sys$system:edt.exe on current file
h			Display this message
:n			Go to kth next file [1]
:p			Go to kth previous file [1]
:f			Display current file name and line number
.			Repeat previous command
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