KSP polyphonic sequence workflow related question

I see that it’s easy to add notes to any given step in the sequence by holding down the step you want and just placing the notes you want. However I want to be able to add/subtract notes at will from chords while the sequence pattern is playing.

Is there a way to do this without having to erase the step and start new?

It would be logical to me that if to add a note you press it then you should be able to remove it by pressing it again. Surely I’m missing something :sweat_smile: