diary

i am thinking if we can have the diary, and on the day or who ever does something to it to go to a complete task from the diary when it shows who and what time it has been completed and for it to go from the daily diary. so i should be able to mark as done, is it is marked by my account it should show that is done by me, and then for it to go into a sub folder, named completed tasks or deleted and for what reason , in order for the diary to not be still so long and not be able to know if another person comes in what has been done and what not, in case someone forgets to doccument