I noticed that when you look at the timeline in the editor, even when your at 1/2 spacing, notes can get really crowded in the timeline, meaning, if you wanted to click only one note to say change the hitsound, then it may take you a couple times to click on the right note. To fix this I suggest an option to increase the spacing between notes on the timeline that can be control with a button in the options and maybe a hotkey. This wouldn't affect the song at all, it would just change the display of the timeline.