Hi Sam.
I think I almost got it. Thanks to a post by @ Vikram_Subbaiah in Filter by Bool Mask - #5 by Batman86
Take a look.
The only challenges I have now are
-
to clean the Empty list
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Arrange / Flatten the list in the format
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Get Back and pick the actual line rather than the vector from the boolean mask.
I would like to accomplish all these within the function.
Thanks in advance