Previous Lesson: Formula bar in Google Sheets
This tutorial will enable you how to add multiple new rows or columns at once in Google Sheets.
1- Suppose, you want to add 3 rows, for this select 3 cells at your desired location.
2- Click right, a menu will appear. select Insert 3 rows option.
3- Result. You have added 3 new rows successfully.
Similarly to add a new column, go to the desired location. Click right and select Insert column option to add a new column.
For more detail, visit Google Office website.