I think what Tom might mean is that because Ctrl-v is not the standard system paste shortcut on Mac (it is Cmd-v), the editor is not inheriting default function

I think what Tom might mean is that because Ctrl-v is not the standard system paste shortcut on Mac (it is Cmd-v), the editor is not inheriting default functionality here. If the editor does in fact implement its own copy and paste, there is a possibility that it would not use the system clipboard (although it might, the NSPasteboard interface enables this).