Function keys on my laptop

Visual Studio developers use their function keys a lot, particularly when debugging, and it was becoming a pain for me having to hold down the blue Fn key on my Dell Inspiron when stepping through code. It turns out that the only way of locking this button on (I had hoped for a 'Fn Lock' setting) is by going into the BIOS on startup (F2) and changing it in there. It's pretty obvious once you're there, but I'm amazed this had to be a BIOS setting rather than something a little more accessible.

Having done this I can now step through code with one finger, but I now have to use the Fn key to access my wireless, battery and multimedia keys. No problemo.