I would love the ability to use the sizing dropdown in the song editor to select a single track (or CMD/CTRL click multiple tracks) to resize. There are a lot of instances where I like to edit tracks based on time timing or alignment with other tracks and being able to do them in the same window would be really efficient.
Essentially, if no tracks or all tracks were selected, the dropdown would resize them all as it does currently. However, if a single track or 2-3 tracks were selected, then only the selected tracks get resized.
