1) "Float Up" can now be disabled system-wide. This is now a setting in Schedule Characteristics. If "Float Up" is disabled, SE will default to selecting the first open slot/shift on your schedule.
2) In SE, a new option to "Hide unavailable members" is available. Checking this box will hide members with no available/preferred time (if using the Availability feature) speeding up load time.
3) There is also a "Hide Column" above the reports section here. Hiding these reports will give a little more screen real estate and a speed increase.
4) "Hide" and "Show this only" options are available on each schedule giving you quick tools to hide schedules you don't need to see or isolate the only schedule you need to work with.
Many under-the-hood optimizations went into this upgrade to improve Schedule Editor performance. If you have any questions, please feel free to contact Customer Service at (888) 749-5550.