Array (Numbers) is a grid where participants pick a number in every cell. Rows and columns are both subquestions. By default every cell is a dropdown with the numbers 1 to 10. Use it for numbers per combination, for example hours per device on weekdays and weekends.
In the picture: 1 the rows, 2 the columns. Both are subquestions.
Click the purple + in the top bar. The question type picker opens.
Under Array, click Array (Numbers). The question appears at the end of the current question group.
Click Your question here and type your question.
Click each row and type its label. The purple + bar below the last row adds a row.
Click each column heading and type its label. The purple + column at the right adds a column.
Select the question to open its settings on the right. The number settings are under Advanced > Display.
Every cell is stored on its own, as the combination of its row and its column, for example Q028_SQ001_SQ003 for the first row and the first column of a question with the code Q028. The value is the number picked. In the export, each cell is a column.
Set Minimum value to 0, Maximum value to 100 and Step value to 10 under Advanced > Display.
Yes. Turn on Text inputs under Advanced > Display.