Multiple short text shows several labeled one-line fields in one question. Each field is a subquestion. Use it for answers that belong together, such as first name, last name and city, or three words that describe a brand.
Click the purple + in the top bar. The question type picker opens.
Under Text, click Multiple short text. The question appears at the end of the current question group.
Click Your question here and type your question.
Click the first subquestion and type the label of the field. Add subquestion below the last row adds another field.
Select the question to open its settings on the right.
Every field is stored on its own, for example Q021_SQ001 for the first field of a question with the code Q021. In the export, each field is a column.
Mandatory applies to all fields. To require a number of fields, set Minimum answers instead, for example 2 of 3.
Input on demand, which showed further fields one at a time, is not in the question type picker of LimeSurvey 7. Add all fields as subquestions and set Minimum answers to what you need.