Probably the most requested feature has (finally) been implemented for the property-bee toolbar - just in time for a spring clean!
By selecting a property (or properties) in the sidebar, and clicking the right mouse button (or using the delete key), it is possible to delete them from your sidebar. Note that properties are not deleted from your database, but placed in a "deleted folder" (like a recycle bin), so it is also possible to undelete them as well.