I’m right. Here’s Command+Spacebar:
tell application "Type2Phone"
activate
delay 0.5
sendKeyCode 44 modifier 8
end tell
I got it from here.
Modifier 8 is the bluetooth HID code for “Left GUI” according to the above link. 80 would be for “Right GUI”. And “GUI” means “Cmd” for Mac/iOS.
I think this advances things a little. I’m still figuring out how to run an arbitrary shortcut. It probably involves finding the code for Down Arrow.