When answering a matrix question with numerous rows, it may get overwhelming to answer these questions. To increase focus on the active row which is being answered, we have added the auto-focus setting which reduces respondent fatigue and improves data quality.
Auto-focus matrix setting helps respondents when answering matrix questions with a large list of attributes. For fewer than 4 rows, this setting does not improve the experience so we only allow this setting for matrix questions with at least 4 rows or attributes.