Copy files asynchronously with progress bar with gcp (not rsync)

[og900aero]

I read among the tips a solution for copying, which displays the current progress bar. However, rsync does not print the percentage projected on the entire size, but per file, so it is not a completely good solution. The program called gcp offers a solution for this, which shows the entire operation as a percentage and also shows a progress bar, like ranger. However, if I paste it into the original code, it does not show its value in the bottom bar.

cmd paste &{{
    set -- $(cat ~/.local/share/lf/files)
    mode="$1"
    shift
    case "$mode" in
        copy)
            rsync -av --ignore-existing --progress -- "$@" . |
            stdbuf -i0 -o0 -e0 tr '\r' '\n' |
            while IFS= read -r line; do
                lf -remote "send $id echo $line"
            done
            ;;
        move) mv -n -- "$@" .;;
    esac
    rm ~/.local/share/lf/files
    lf -remote "send clear"
}}

I rewrote the rsync line to: gcp -rfp "$@" . | ,but does not show the value in the status bar.
You should know that while rsync always writes the status in a new line when updating (that's why while, do is used if I guess correctly), gcp writes the value in 1 line and always updates the same line. How should this code fragment be modified accordingly?

[og900aero]

Best way wit advanced copy and move program: https://github.com/jarun/advcpmv

cmd paste &{{
	size=$(wc -c ~/.local/share/lf/files | awk '{print $1}')
	set -- $(cat ~/.local/share/lf/files)
	mode="$1"
	shift
    case "$mode" in
		copy)
			# rsync -ah --info=progress2 -- "$@" . |
    		advcp -ag "$@" . | grep -Po --line-buffered "(?<=^\033\[K).+%$" | sed -nu 'p;n' |
    		stdbuf -i0 -o0 -e0 tr '\r' '\n' |
    		while IFS= read -r line; do
	    		lf -remote "send $id echo '$line'"
    		done
			;;
		move)
			if [ $size -gt 5 ]; then 
				advmv -fg "$@" . | grep -Po --line-buffered "(?<=^\033\[K).+%$" | sed -nu 'p;n' |
				while IFS= read -r line; do
					lf -remote "send $id echo '$line'"
				done
			fi
			;;
	esac
        rm ~/.local/share/lf/files
        lf -remote "send clear"
}}