Select notes when dragging the keyboard

[maiko3tattun]

New Feature:

Select notes of the same pitch when dragging the keyboard in the pianoroll. This is similar to the behavior of some DAWs. It is useful when creating harmonies.

https://github.com/user-attachments/assets/0435929d-15eb-477e-ae2f-189b7e329400

[maiko3tattun]

Changed to target only the selected note when multiple notes are initially selected.

https://github.com/user-attachments/assets/ec4e19a4-cb71-4f2f-9006-953cab548c1b

[stakira]

Most of the time I only want to find a pitch when I drag the keyboard?

[maiko3tattun]

When we create harmonies, we often want to select all notes of a certain pitch. A good way to select these without having to drag around the piano roll is to click on the keyboard.