Best try

Hi everybody,

I have a question. I made many researches on the web without find any answer.

My client want that the best try of the learner is kept in the LMS. It means if the learner has completed the module once, and then he review the module a second time and not finish it this second time, in the LMS, it steel noted "completed" because it's not the last try but the best try that is tracked on the LMS.

Do you know how to do this ?

Thanks