Merging and splitting lists

my question is simple, how do i extract the green item from the red marked list?

Found it by myself:

Two other examples:

// Rolf

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While playing around trying to learn this (trees) myself I added a third variant. A Path expression “{A;B}” is here constructed by replacing text with index for path A and B respectively). I assume there are other ways to do this with existing components. Experts can fill in here.

Fig.1. (Verifying using my data, not from the example). Edit: I don’t know what happened with the former picture, but this one shows correct path)

// Rolf