About Toggle show MIDI editor windows.

[dangguidan]

If I duplicate multiple MIDI items in duplicate tracks, I double-click on one of them, open the MIDI editor, and then run View: Toggle show MIDI editor windows, so I go back to the main window, and then run the main window again: View: Toggle show MIDI editor windows, then I will hit both at the same time. All the items I copied before I started, and I want to go back to my previous MIDI editor status.

[EvilDragon]

You should really have one MIDI editor per project if you just want a single window to toggle. See Preferencers->Editing behavior->MIDI Editor.

[dangguidan]

Thank you for your reply. Even if you set it up as a MIDI editor for a project, the problem still exists.
I wonder if this is the problem, when Toggle show MIDI editor, Reaper saw uplicate multiple MIDI items as the same item.