Two rectangle shapes connected via polyline shape -> add to palette as ONE (combined) shape node

Question

I have two rectangle shapes connected via a polyline shape on my graph.
I do configure and customize their look to my needs (e.g. labels, colours, borders, size).
Than I would like to reuse these three shapes as configured with changing text and position
in the same and other graphs too.
Is it possible to ad the two rectangle shapes connected via polyline shape as ONE (combined)
new shape node to palette. To reuse it again and agai in other graphs?

Answer 1

Unfortunately, it is not possible to add sub-graphs to yEd's palette. Only single elements are supported.