Add new contact button when scheduling event from desktop version Merged

On the mobile version, there is a nice "add contact button" when adding an event, in case you don't currently have that contact in the address book associated with the account. It makes it easy to continue inputting the event with a new contact without having to exit out, add the contact, and then go back into the event to finish it. This feature is not available onthe desktop version though. Could you create an "add contact" button in the event box so I don't have to exit out to add a new contact if needed? I do most of my event inputting from the desktop so this would really help!