I have the HHKB JP version. This is the layout: http://www.pfu.fujitsu.com/hhkeyboard/lineup/pdkb420w.html
I got it mainly because of the dedicated arrow keys. The thumb keys are nicely accessible but already have clear functions which are not relevant for typing in English. So you wind up installing HASU's board and then it gets complicated because you've swapped to the Japanese layout on your keyboard preferences which I've found to be quite buggy on windows. So then you build a custom map...and then your keys have the wrong legends so you'll get some blank keys...and then you realise the profiles won't work with the weird layout...and then you wish you never bothered :d
I guess the answer to your question is yes, but it's a pain in the backside because there is a domino effect to making the thumb keys useful.
I'd rather just have a regular HHKB )
Thanks for answering.
Based on what you say, the real problem you have is Windows; the keyboard itself seems to be working fine for you. In
GNU/Linux you can easily remap keys with xmodmap and similar; that's all you had to do (no domino effect). Windows not only generates problems,
it is, itself, a problem. You are forced to do what Microsoft wants for you, according to its own interests. Do not think that OS X is any different; it's just having a different master. In GNU/Linux you can use, modify, and configure software freely on your own, always (as long as you use free software only); its licenses allow this; that is why it is called
free (as in freedom) software.
The labels in the keys do not matter; for example, you can configure your computer so that you write in Colemak despite that your keyboard is labeled in QWERTY. There is no reason to "fix" them, since they are not broken in the first place; they are just a decorative. You are supposed to type without needing or using the labels on the keys; that is what the bumps on the index finger home keys are for (F and J in a QWERTY layout).