In Osu!Stream there's a beat called a hold. You have to tap and hold it until the circle around it is complete, or as the tutorial says, until it explodes.sometimes you need to use one finger to hold it, and the other finger to do something else at the same time. I was thinking that you can add the hold into osu. What I'm thinking is that you have to click it with one button and hold that down, and use the other button to do something else.