For each item j in list, how to get [k in list]?


Is there a way to get another variable other than j?
I managed to do it in another project but not sure how to do it here.

I’m trying to iterate through a nested list like in the following pic

Thanks!

I’ve found this thread after some searching, but it doesn’t offer a full solution? Other than the weird creating a function way.

Click on the name of the loop variable ( j ) within the block and choose rename variable.

Is there a way to have multiple variables?
When using rename variable it turns all the ‘j’ into ‘k’ for example. I’m trying to get j, k, etc., as in multiple variables