For your second question read this post from @Fox ,
maybe its what you need. Its in Russian, but you can
use translator. There is an example script too >
Add list item to variable
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How can you loop items from a list list to a variable ?
Edit :
I think i've solved it .
For people who will find the answer to this in the future
set a new variable to "0" or the starting point of the list --->"Get Element" in list menu and at the "index" put your variable ----> to get the next list item do an increment to the variable set to "0"