How to insert mutliple rows in a LibreOffice Calc-Document at once?

On my Feodra 22,I have LibreOffice installed from the Default-Repositories.

To insert a new row in a Calc ( Excel ) Document, the INSERT-Menu has a Rows item, which
adds one row.

But when you have to add more data, it is tedious to insert row by row.

It is much easier, but I wouldn't have found this option. See here.

Just select the number of rows you like to insert in the spreadsheet and do a right-click on the
left side of the document, where the row numbers are shown.

In the context-menu click Insert Rows Above  and you get a bunch of new rows.