This is something that people here who also know Photoshop and similar tools might be able to understand better, while most musicians will ask “What the hell do Photoshop and Cubase have to do with each other?” and you would be right, for the most part.
But, while I don’t know of any DAW that has this, at times it would be very useful in the key editor. For example, here I would like to select one of the two sets of notes in the mountains that you see, and while the regular marquee selection works, it takes more steps. So I wish there was a more efficient tool for this, especially when you have to do it several times.
