I would like to be able to enter actual amount of reps I did

It would be great if I can enter exactly how many reps I did per every exercise. Recommended reps were too low and I almost did all exercises on mastery level for the given exercise. Besides it' would be great to track my progress (and overtraining) that way. So it would be great to have 3 columns: "recommended nr. of reps", "mastery" and "actual". Maybe even create some background code that will adjust next exercise according to "actual" number of reps performed.