Good advise above.

I think that on the discharge cut-off voltage and the discharge current settings I'd like to ask what is the purpose of the discharge?

I know that AA batts vary a lot and most of them can handle a couple of amp discharge. Your AAA may be able to handle just 2 or 3 amps, but can be discharged at any rate up to that depending on why you want to discharge. On the cut-off voltage each cell can go down to 0 volts so if you were doing a single cell then .1 would be ok, but since they are all in series and there's 10 of them it is risky to pull them down to much lower than .8 per cell because the weakest cell or the cell that runs down first will be reversed voltaged because it is in series with all the rest of them (9 of them could be 1 volt and 1 could be negative voltage and you would not know it)