LIST - find items on sublists that match

[Piotrek18]

Hi All,
I’ve got a problem with matching items on list (sublists). I want to pass through bool mask only those surfaces, that has points with specific coordinates showed on anather list.
Anyone can help?

Thanks in advance
PS

[Piotrek18]

better image:

[seyedamir.hakim]

Instead of using == and List.FilterByBoolMask nodes, try using List.IndexOf and List.GetItemAtIndex.

[Piotrek18]

Got it!
solved man, thanks!