"Copy current receive event" in the Midi-Settings dialog doesn't work.

[willeke1234]

"Copy current receive event" in the Midi-Settings dialog doesn't work. The send event is reset to (none). I can't find this feature in the Help.

Steps to reproduce:

1. Open de Midi-Settings dialog
2. Select an event
3. Switch to Send
4. Click "Copy current receive event"

The event is not copied. I've been debugging and the event isn't copied because the input devide can't be found in the output devices. The input device is "Any device".

5. Switch to Receive and select a Device
6. Switch to Send and click "Copy current receive event"

The event is not copied because the device is not in the output devices list. If the device is in the output devices list then the event is not copied because the output device isn't connected to the input device. Apparently I have to connect the input and output device with the button "MIDI output device..." in Settings. But now GrandOrgue crashes because Cocoa can't set the Channel popup button to 4294967294 (0xFFFFFFFE). The channel of the receive event is "Any channel".

7. Switch to Receive and select a Channel
8. Switch to Send and click "Copy current receive event"

After setting the channel to a number, "Copy current receive event" does work. But only if the event is sendable, otherwise the event is not copied and GrandOrgue doesn't tell me.

Summary:
Bug: "Any device" isn't copied.
Bug: "Any channel" crashes.
Bug: The "Copy current receive event" and "MIDI output device..." buttons are missing in the Help.
Feature request: If the receive event can't be copied then tell the user why.