Keyboard version of $FZF_CLICK_HEADER_WORD

[fsc0]

First, thanks for the 0.59.0. 👏

I'm looking second example script in below section.
(The one feels like script named fzf-ps.)
https://junegunn.github.io/fzf/releases/0.58.0/#fzf_nth-environment-variable
This one has number prompt for each section when ctrl-n input happens.

But latest 0.59.0, click-header enhancements section example script has nice text prompt from $FZF_CLICK_HEADER_WORD.
But... we already know what itches our mind... the CLICK. 😅
https://junegunn.github.io/fzf/releases/0.59.0/#click-header-enhancements

So my question is there's way of getting (nth, more like focused) header text (and use as prompt, in this case) without using mouse click?
(Like $FZF_NTH_HEADER_WORD or $FZF_FOCUSED_HEADER_WORD? 🤔)

P.S.
Very interesting github.io page for sure.
hugo-book, right? 👍

[fsc0]

Found the way with below script.

#!/usr/bin/env bash
fzf_main_cmd()
{
	ps -ef
}
NTH_INIT="8"
export -f fzf_main_cmd

CMD_OUTPUT="$(fzf_main_cmd)"
export NTH_HEADER_LIST="$(awk 'NR==1' <<< "$CMD_OUTPUT")"
export NTH_TOTAL="$(awk '{print NF; exit}' <<< "$CMD_OUTPUT")"

fzf_get_nth_header()
{
	awk "{print \$$1}" <<< "$NTH_HEADER_LIST"
}
export -f fzf_get_nth_header

fzf_mov_nth()
{
	NTH_MOV="$1"
	NTH_NUM="$2"

	if [[ "$NTH_NUM" == '..' ]]; then
		if [[ "$NTH_MOV" == 'next' ]]; then
			NTH_NUM="0"
		elif [[ "$NTH_MOV" == 'prev' ]]; then
			NTH_NUM="$(( NTH_TOTAL + 1 ))"
		fi
	fi

	if [[ "$NTH_MOV" == 'next' ]]; then
		NTH_NUM="$(( NTH_NUM + 1 ))"
	elif [[ "$NTH_MOV" == 'prev' ]]; then
		NTH_NUM="$(( NTH_NUM - 1 ))"
	fi

	if (( NTH_NUM < 1 )) || (( NTH_NUM > NTH_TOTAL )); then
		NTH_NUM="1.."
	fi

	echo "$NTH_NUM"
}
export -f fzf_mov_nth

fzf \
	--reverse \
	--nth "$NTH_INIT" \
	--info inline \
	--header-lines 1 \
	--header-border horizontal \
	--color nth:regular,fg:dim \
	--bind 'ctrl-r:reload(fzf_main_cmd)' \
	--bind 'ctrl-n:transform-nth(fzf_mov_nth next ${FZF_NTH})' \
	--bind 'ctrl-p:transform-nth(fzf_mov_nth prev ${FZF_NTH})' \
	--bind 'result:transform-prompt:echo "$(fzf_get_nth_header ${FZF_NTH})> "' \
<<< "$CMD_OUTPUT"

UPDATE 1: add fzf_mov_nth function.
UPDATE 2: proper nth highlighting.