# Curved arrow in tikzcd

I am new to using tikzcd and I want a diagram like this:

\begin{figure}
\centering
\begin{tikzcd}[row sep=huge, column sep=huge, text height=1.5ex, text depth=0.25ex]
\displaystyle A \arrow{dr}{F_4} & \arrow{l}{\widetilde{\mathrm{cl}}} \mathscr{E} \arrow{d}{F_1} \arrow{r}{\mathrm{ncl}} & \arrow[bend right=50,shorten >=10pt]{ll}{F} B \arrow{d}{\mathrm{F_0}} \\
& D & \arrow{l}{F_2} G
\end{tikzcd}
\end{figure}


The problem is: I want an additional curved arrow (similarly to the arrow F) going all the way from A to G. Is there a simple way?

Just use an \arrow command like for the other arrows. Add

\arrow[bend right=60,swap]{drr}{X}


to the first cell. Moreover, I suggest to use swap in some places to move the label to the other side of the arrow (see below for examples).

\documentclass[border=1mm]{standalone}
\usepackage{tikz-cd}
\usepackage{mathrsfs}
\begin{document}
\begin{tikzcd}[row sep=huge, column sep=huge, text height=1.5ex, text depth=0.25ex]
\displaystyle A
\arrow[swap]{dr}{F_4}
\arrow[bend right=60,swap]{drr}{X} % <<<<<<<<<<<<<
&   \arrow[swap]{l}{\widetilde{\mathrm{cl}}}
\mathscr{E}
\arrow{d}{F_1}
\arrow{r}{\mathrm{ncl}}
&   \arrow[bend right=30,swap]{ll}{F}
B
\arrow{d}{\mathrm{F_0}}
\\
&   D
&   \arrow{l}{F_2}
G
\end{tikzcd}
\end{document}