Ran a search before asking, but could not find any information on this topic.   

Notice that when i go back and add missing task records from previous days, I am unable to change the "close" date of that task.   Is there an option for removing the lock on this field so i can accurately record my task/conversation history? 

It looks somewhat silly to see 3 tasks closed in 1 day which were spread out over a weeks time, evident by the notes for the tasks. 

Thank you in advance for your comments and suggestions!