Got em.  Works like a charm.  I used my lock switch as a function lock key on my split right shift.  When it's down, I know that the right mod bank is an arrow cluster  

Wishlist:
I wish it clicked. I didn't even think about it, but a click would have been nice.  Also, it's definitely visible when stuck down, but  I somehow thought it would be even more noticeable.  It rocks, don't get me wrong, I just wish it stayed down a millimeter lower or so.
Here ya go:  (wow, guys!  I might be able to actually use a 60% comfortably in photoshop and illustrator!  It always felt nice in a code editor, but I really missed the arrows in adobe applications.   We shall see down the road.)
![[GB] MX Lock Switches MX1A-31NN (All GB Orders Delivered) CLOSED 168935-0](https://geekhack.org/index.php?action=dlattach;topic=89302.0;attach=168935;image)