Variable: erc-input-line-position
erc-input-line-position is a customizable variable defined in
erc-goodies.el.gz.
Value
nil
Documentation
Specify where to position the input line when using erc-scroll-to-bottom.
This should be an integer specifying the line of the buffer on which
the input line should stay. A value of "-1" would keep the input
line positioned on the last line in the buffer. This is passed as an
argument to recenter, unless erc-scrolltobottom-all is
relaxed, in which case, ERC interprets it as additional lines
to scroll down by per message insertion (minus one for the
prompt).
Source Code
;; Defined in /usr/src/emacs/lisp/erc/erc-goodies.el.gz
;;; Automatically scroll to bottom
(defcustom erc-input-line-position nil
"Specify where to position the input line when using `erc-scroll-to-bottom'.
This should be an integer specifying the line of the buffer on which
the input line should stay. A value of \"-1\" would keep the input
line positioned on the last line in the buffer. This is passed as an
argument to `recenter', unless `erc-scrolltobottom-all' is
`relaxed', in which case, ERC interprets it as additional lines
to scroll down by per message insertion (minus one for the
prompt)."
:group 'erc-display
:type '(choice integer (const nil)))