I have a silenced codeblock, that I postprocess to push the result (a
password) onto the kill-ring, and then returns "Password copied" (showing
in the status line). This works very nicely. I'm now looking for the cherry
on the cake: I'd like to render the #+CALL as a link, e.g. something like,
[Copy the secret thing]. Clicking/following the link would execute the call
and my password ready to paste elsewhere. Feasible?

-- 
Linux. The choice of a GNU generation.