diff --git a/doc/nano.texi b/doc/nano.texi
index 016f87fc..9ae60ed0 100644
--- a/doc/nano.texi
+++ b/doc/nano.texi
@@ -1643,7 +1643,11 @@ while keeping the cursor in the same text position, if possible.
 (This function is bound by default to @kbd{Alt+Down}.)
 
 @item center
-Scrolls the line with the cursor to the middle of the screen.
+Scrolls the line with the cursor to the middle of the viewport.
+
+@item cycle
+Scrolls the line with the cursor first to the middle of the viewport,
+then to the top, then to the bottom.
 
 @item prevword
 Moves the cursor to the beginning of the previous word.
diff --git a/doc/nanorc.5 b/doc/nanorc.5
index 83ddb69a..15c71c70 100644
--- a/doc/nanorc.5
+++ b/doc/nanorc.5
@@ -794,7 +794,11 @@ while keeping the cursor in the same text position, if possible.
 (This function is bound by default to <Alt+Down>.)
 .TP
 .B center
-Scrolls the line with the cursor to the middle of the screen.
+Scrolls the line with the cursor to the middle of the viewport.
+.TP
+.B cycle
+Scrolls the line with the cursor first to the middle of the viewport,
+then to the top, then to the bottom.
 .TP
 .B prevword
 Moves the cursor to the beginning of the previous word.
diff --git a/syntax/nanorc.nanorc b/syntax/nanorc.nanorc
index 5af71c4d..daf104c4 100644
--- a/syntax/nanorc.nanorc
+++ b/syntax/nanorc.nanorc
@@ -29,7 +29,7 @@ color brightmagenta "[[:blank:]](start=)?".+""
 color crimson "\{(help|cancel|exit|savefile|writeout|discardbuffer|insert|where(is|was)|find(previous|next|bracket)|replace)\}"
 color crimson "\{(cut|copy|paste|zap|chopword(left|right)|cutrestoffile|execute|mark|speller|linter|formatter|(full)?justify)\}"
 color crimson "\{(location|gotoline|(begin|end)para|comment|complete|(un)?indent|wordcount|(record|run)macro|anchor|undo|redo)\}"
-color crimson "\{(left|right|up|down|home|end|(scroll|page)(up|down)|(top|bottom)row|center|(prev|next)(word|block|anchor|buf))\}"
+color crimson "\{(left|right|up|down|home|end|(scroll|page)(up|down)|(top|bottom)row|center|cycle|(prev|next)(word|block|anchor|buf))\}"
 color crimson "\{(tab|enter|delete|backspace|verbatim|refresh|suspend|casesens|regexp|backwards|older|newer|(dos|mac)format)\}"
 color crimson "\{(append|prepend|backup|flip(goto|replace|execute|pipe|convert|newbuffer)|browser|gotodir|(first|last)(file|line))\}"
 color crimson "\{(nohelp|constantshow|softwrap|linenumbers|whitespacedisplay|nosyntax|zero)\}"