How can I have a condition that would copy data from input table to another input table?

Hi I have a table input there the user can select current or past use of a substance. I'd like the subsequent table to have rows that are updated with the substance that was checked in the previous table. How is this done? 

You can do the condition like this:

However, considering the number of rows, this won't be an easy task. Here's an example https://form.jotform.com/81356870554968. 

https://www.jotform.com/help/343-How-to-perform-form-calculation-using-the-Matrix-Field- 

The calculation values of the first input table would be the Past Use and Current Use:

Should have 19 rows of the same values since you have 19 rows in the first input table. The above is just an example.

Let us know if you need further assistance.