Ep-133 undo notes

I noticed that when you try to undo a note in the sequencer, nothing happens. While I found information in the manual stating that it will undo recorded notes, there’s no mention of sequencer undo functionality. The only reason I’m deleting notes with the sequencer is due to voice limitations, but it doesn’t specify how many notes are played until you start erasing, unless you’re in the right key signature. If I’m mistaken, please let me know.