It is not obvious how to insert multiple rows in a Google Docs spreadsheet anywhere in the spreadsheet. Google has a button to add a variable number of rows at the bottom of the sheet shown below, but no obvious button to insert anywhere in the sheet.
I used DotNetNuke a long time ago and was suprised to recently learn that there is still a large amount of people using the software. There are even more folks that installed it a long time ago and lack the resources to upgrade to a more up to date software package so there is still plenty of work to be done doing maintenance on sites using the DotNetNuke software. While many things seem really outdated there are still some cool features so the software can be updated to bring people a bit more up to date.