How to add a new line in google sheets above another line?

Question

Google Sheets

How to add a new line in google sheets above another line? Let's add a new line above line 3

Answer 1

Select line 3, then the menu: Insert - Line above.
Insert programmatically:

function myFunction() {
SpreadsheetApp.getActive().getActiveSheet().insertRowsBefore(3, 1);
};