goodparleyandorfing

What message(s) does [pcontrol] send to its connected subpatcher(s), and why must it/they be invisible? If I send 'open' to a [pcontrol], and the subpatcher beneath it opens, what message has it sent? What happens inside! I'm very curious..

pcontrols-secret-messages

...what I'm wondering is, could a subpatcher be opened with just a message?

[pcontrol]'s secret messages