Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: Is there a way to "FLIP" the Delete key / Backspace key -- so that we don't have to hit the Fn for Backspace?
Document: The driver is not necessary, but it presumably adds some niceties, such as Mac-centric media controls. I also set the DIP switch that converts the Delete key to a Backspace. Forward delete is available via Fn+Del.
The Happy Hacking have these keys reversed, so if backslash is a character you type often, you'll probably hit the backspace key instead.
Most of the features of the HHK can be altered via the DIP switches on the back, where you can decide if the Delete key will really be a delete (and delete forward) or a typical backspace. If you can't take the Control key being where it is, or if you use the Caps Lock function regularly you can also change that with the DIP switches.
For example, I adapted to Control being where Caps Lock is usually located. Alt and Command (with Mac symbols!) are exactly where they are supposed to be on either side of the spacebar. Moreover, the Backspace located directly above the Return key now seems to be where it should have been all along. The arrow keys are Fn+[;'/ -- I thought this would be the hardest adjustment of all, but this also seems quite natural.
are easier to get used to than you'd think, though I still sometimes fat-finger page-up when reaching for home.A pair of USB ports on the back, along with a detachable USB cable, are nice perks. Works well for both OS X and Windows, though you'll want to remap the Home and End keys in OS X to be sane, instead of jumping to beginning/end of document (not possible to hit Fn + Arrow on this keyboard, like Apple expects you to).
Replacement sets for this keyboard are extremely expensive (~$80 as of this review). I swapped my escape key for a red one care of Elite Keyboards, and it looks quite nice, but there aren't a lot of other options to customize it like there are for competing mechanical keyboards.The switches on the back let you have a great deal of control over the keyboard, but I would have preferred being able to swap the delete key for backslash, and make shift+escape produce tilde.
The only drawbacks to the Leopold FC660C were its lack of high-quality dye-sublimated PBT keycaps and the asymmetry introduced into its layout by the arrow cluster and Insert/Delete keys.Throughout my search, I kept getting suggestions to try the HHKB Pro 2. I was attracted to its 60% form factor, elegant design, and Tope switches, but I was skeptical because of its alien layout and lack of dedicated arrow keys.
But I had to return it because one of the switches on the back wasn't working properly. It typed so well that I just can't give it a bad star rating though. It might have been an issue with my version of Windows 8, so no hard feelings. I ordered another Topre and it worked fine (switching between backspace and \|) so I just kept that one instead.
Curiously I adjusted very quickly to having the Control key just to the left of my pinky. The lack of cursor keys wasn't a big problem for me, although your milage may of course vary, so do take that into account.
Let me start off by describing what the Happy Hacking Keyboard (hhk from now on) is:The HHK is a small keyboard by any standard, the layout is reminiscent of Sun's System 5 keyboards, where the Control key is located where the Caps Lock usually is.
Answer: Flip DIP switch 3 on the back of the kb.