Option to show last added item at top for list question triggered rosters

We have a questionnaire to list households in an area. The set up of our questionnaire: a list question to list the head of households and then a roster triggered by that list question to collect more information about the household for sampling purposes (ie involved in agricultural activity). Currently, interviewers have scroll all the way to the bottom to get the roster button for the household they just added to the list. This means the interviewer spends a lot of time scrolling up and down the form to add the household to the list and then to get to the roster button to fill out more information. It would be more efficient if there was an option in Designer that changes the sorting of the roster buttons for list rosters so that the most recently added item to the list is at the top instead of the bottom.