genealogytree: How to save database keys in a common key

Question

Normally at a genealogytree node I have to say
p[]{name=Jane, birth={2-2-1888}{somewhere}}

How can I create a key, like persdata=JaneID which expands to name=Jane, birth={2-2-1888}{somewhere}, so that I only have to say:
p[]{persdata=JaneID}

A not working or correct MWE:

\documentclass[landscape,paper=a5]{scrartcl}
\usepackage[all]{genealogytree}
\begin{document}
% Works not: 
\pgfkeys{
     persdata/.initial={name=Jane, birth={1-1-1777}{somewhere}},
     persdata/.get=\persdata,
     persdata/.store in=\persdata,
}
\gtrset{database/save/persdata/.get=\persdata}
\begin{tikzpicture}[]
\genealogytree[template=signpost, 
processing=database,
]{
parent{
g{name=first child}
c{name=second child}
c{name=third child}
p[]{persdata=JaneID} % <---------------- Problem here....
p[]{name=works, birth={1-1-1777}{somewhere}}
         }
}
\end{tikzpicture}
\end{document}

Answer 1

This answer provides a new /gtr/database key persdata that accepts predefined choices like JaneID. When persdata=JaneID is used, the corresponding key-value list stored in that style is retrieved.

\documentclass[landscape,paper=a5]{scrartcl}
\usepackage[all]{genealogytree}
\begin{document}
\gtrset{
  database/.cd,
  persdata/.is choice,
  persdata/JaneID/.style={name=Jane, birth={1-1-1777}{somewhere}}
}
\begin{tikzpicture}[]
  \genealogytree[
    template=signpost, 
    processing=database,
  ]
  {
    parent{
      g{name=first child}
      c{name=second child}
      c{name=third child}
      p[]{persdata=JaneID}
      p[]{name=works, birth={1-1-1777}{somewhere}}
    }
  }
\end{tikzpicture}
\end{document}