Join Lists and Replace by Index / Create boolean pattern by index

Hi there,

I want to create a set of boolean patterns with a specific lenght.

My input is a set of lists of indices. At the end all Lists should be boolean patterns where the indices of the input lists are replaced. I tried the insert list command, but didn¨t work out, so i came up with this solution.

Are there any better suggestions?

Thanks a lot,

Phillip