nano: Anchors

 
 3.8 Anchors
 ===========
 
 With ‘M-Ins’ you can place an anchor (a kind of temporary bookmark) at
 the current line.  With ‘M-PgUp’ and ‘M-PgDn’ you can jump to an anchor
 in the backward/forward direction.  This jumping wraps around at the top
 and bottom.
 
    When a line with an anchor is removed, the line where the cursor ends
 up inherits the anchor.  After performing an operation on the entire
 buffer (like formatting it, piping it through a command, or doing an
 external spell check on it), any anchors that were present are gone.
 And when you close the buffer, all its anchors simply disappear; they
 are not saved.
 
    Anchors are visualized in the margin when line numbers are activated.