The ability to switch 2 colours around when both are selected
Working on a logo at the moment and was thinking that it could be helpful if there was an 'inverse' option in illustrator, or the ability to switch 2 colours around if you have both objects selected at the same time, e.g. black becomes white and white becomes black. Possibly only possible if you have global colour selected on both colours? Very handy when 'sketching' ideas and quickly need to switch colours.