如何在这个重力流程图树的子节点旁边添加节点？

Question

我想g在节点的右侧添加一个新节点c，见图 2。
下面的代码将此节点放在中央分支的左侧，见图 1。如何将其移动到所需位置，即节点的右侧c？

\documentclass{article}
\usepackage[showframe, 
            margin=25mm]{geometry}
\usepackage{tikz}
\usetikzlibrary{calc, chains, positioning}
\usepackage{lipsum}

% https://tex.stackexchange.com/a/371591/13173
\begin{document}
    \begin{figure}
        \centering
    \begin{tikzpicture}[
    node distance = 4mm and 0.1\textwidth,
      start chain = going below,
every node/.style = {draw, fill=gray!30,
              minimum width=0.5\textwidth,
              text width =\pgfkeysvalueof{/pgf/minimum width}-2*\pgfkeysvalueof{/pgf/inner xsep},
              on chain},
                        ]
\node (a) {\lipsum*[11]};
\node (b) {\lipsum*[11]};
\node (c) {\lipsum*[11]};
\node (d) {\lipsum*[11]};
%
\coordinate[left=of $(a.west)!0.5!(d.west)$] (e);
\node (f) [minimum width=0.3\textwidth, left=of e] {\lipsum*[11]};
\draw   (a) -| (e)
        (b) -| (e)
        (c) -| (e)
        (d) -| (e);
\draw [->] (e) -- (f);

%% TODO my additions
\node (g) {\lipsum*[11]};

\coordinate[left=of $(c.east)$] (h);
\draw   (g) -| (c); 
\draw [->] (h) -- (c); % to middle of the single node 

\end{tikzpicture}
    \end{figure}
\end{document

图：左图1，右图2。

Answer 1

像这样？

\documentclass{article}
\usepackage[showframe,
            margin=25mm]{geometry}
\usepackage{tikz}
\usetikzlibrary{calc, chains, positioning}
\usepackage{lipsum}


\begin{document}
    \begin{figure}
        \centering
    \begin{tikzpicture}[
    node distance = 4mm and 0.0265\textwidth,
      start chain = going below,
every node/.style = {draw, fill=gray!30,
              minimum width=0.305\textwidth,
              text width =\pgfkeysvalueof{/pgf/minimum width}-2*\pgfkeysvalueof{/pgf/inner xsep},
              font=\small\sffamily,  % just for this MWE, otherwise delete this line
              on chain},
                        ]
\node (a) {\lipsum*[11]};
\node (b) {\lipsum*[11]};
\node (c) {\lipsum*[11]};
\node (d) {\lipsum*[11]};
%
\coordinate[left=of $(a.west)!0.5!(d.west)$] (e);
\node (f) [left=of e] {\lipsum*[11]};
%
\node (g) [right=of c] {\lipsum*[11]};

\draw   (a) -| (e)
        (b) -| (e)
        (c) -| (e)
        (d) -| (e);
\draw [->] (e) edge (f) (c) -- (g);
\end{tikzpicture}
    \end{figure}
\end{document}