How can I insert items using sets only

For example, I have an array of points, and i want to inset another array in the first one. At the same time, keeping the sequence. Without sort points etc, using only data trees. Like this: (4.3 KB)
ik its pretty basic, shame on me

It might be not what you expect… anyway… (7.4 KB)

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You could use Weave. (6.6 KB)

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yes, thats it, thank you very much!

Thank you, thats exactly what I was looking for!