In Max you can just double click on a send or receive object and a little box pops up showing its partners and which patch they’re in. But if the matching send/receive is in another patch that’s not open it doesn’t show up.
I wrote this perl script for those occasions when you’ve maybe got dozens of files and don’t know which patch the matching send/receive is in–it’s especially useful when there are several sends/receives using the same global. Works with signal send~s too.
See top of max-sends.pl