./examples/sampling/sampling_with_adsr/adsr_advanced.maxpat shows three different ways to use poly~ with adsr~.
./examples/synths/ohm shows how to use targeted messages to build an additive synth.
./examples/effects/kompressor/lib/komp.maxpat shows how to downsample a poly~ instance to save cycles when audio is used to control, not to listen.
./examples/max-tricks/send-receive-tricks/send-receive-hoard-#1.maxpat shows how to use the instance number (from thispoly~) to create unique send-receive names that are local to the instance.
./examples/jitter-examples/video/quicktime/PolyMovie/Poly~ForMovies.maxpat shows one way to make each movie a poly~ voice.
(please list things that you believe to be errors or omissions from the existing refpage)