Combine / add points at list

Hello everyone.
I’m trying to combine/merge two point lists. The point of Index 1 (top) needs to be added to the index 1 of the pointlist. This might be very easy but can’t seem to find it. Hope you can help me out.

Something like this? If you want to add to the end, use AddItemToEnd.

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Many thanks!! …Sometimes you keep staring at the easiest things.
Your solution and a flatten did the job :+1:

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