Since I moved from 8.5 straight to CBB I have found the width of the Inspector too large..it's more than double the old size and eats up valuable track view space because it displays the buss as well as the track channel and also the Pro Channel view is huge. Although you can drag the track  pane over it to reduce it back down to normal size as soon as you use the Pro Channel etc  it pops back out again  I would like to call for the reinstatement of a slim Inspector that is fully funct