I was unable to determine exactly
how to create the reference links from/to Activities from/to Requirements, even though there is a built-in matrix for this cross-check verification. I was successful linking Capabilities to States, and generate the matrix report for that specific verification.
I found the same true at the Requirements to System Functions matrix as well.
Unfortunately, it is only in French for the moment, but I did it in my “Radio-réveil” example, that you can download on the Capella
start web page.
If you take a look at the pdf explanation file, it is from page 61 to 72.
Notice that you can edit all Capella built-in matrices by adding “X” in the cells.
Hope it helps