Extend RADScheduler not just to creating appointment. Extend it to be timelogging\time clocking feature where user can use RADScheduler to perform timelogging\clocking. Also allows copy and paste from 1 day to another day.
Not clear enough. We have a code library for copy/paste appointments: http://www.telerik.com/community/code-library/aspnet-ajax/scheduler/copy-paste-appointments-using-keyboard-shortcut.aspx