Did you know you can multi-select bookings in the Project Tree and bulk update the status, the time or the booking name?
You can also use SHIFT & Click to select multiple Bookings in one go. Click to highlight the first booking, then press SHIFT and click on the last booking you want to highlight. All Bookings in between will be included in the selection. (Since 6.6)
Shift + cmd + click allows to e.g. select booking 1-3 (SHIFT + CLICK) and then click CMD and SHIFT CLICK again to include bookings 5-6.