Matrix line data in Formatted search

Hello Experts

I have this problem: I need to retrieve data from the Matrix of an active window of a document (a delivery), to use them with a formatted search.

I tried the syntax $[$38.11.0] for example to get the quantity. It works, but my question is: this instruction takes only the value from the first line of the matrix, how can I get values from other lines?

Thanks in advance