To view, go to the Trashcan icon on the Toolbox. Once there, place the cursor in the search field at the bottom of the window, and then hit Enter/Return on your keyboard. This will bring up the cache of the Deleted Bookings.
Options available in the drop-down menu, when one or more lines have been selected:
Add Back In: Highlight the deleted Booking that should be added back in and select Add BackIn.
Delete All: Choose this option to delete all deleted Bookings from any User.
Delete All Bookings Belonging To Me: Deletes only Bookings of that User.Delete: Delete the selected Booking(s).
Show Only My Bookings: Tick this option to only see the Bookings created by yourself.
For speed performance you should periodically clean the Deleted Booking And Binders tab. (See the Server Optimisation solutions for further information.)
Make sure that the Maximum Hits When Searching is set to No Limit for any search. To adjust, go to Toolbox > Settings > Miscellaneous >Maximum Hits When Searching.