This might be a really dumb question, but with a custom plate, would it be possible to mod the PCB (by jumping traces etc.) to combine the 2.75x space bar and a 1.25x modifier to accommodate a 4x SA spacebar? Same with the 2x space and 1x FN key to have a 3x spacebar.
Not sure why you would mod the PCB for this. The board is fully programmable so you would just set one of the two switches to [null] and the other to [space]. The problems would come in modding your 4u cap to fit across both switches (and stabilizers, if you choose) and then getting used to the strange feeling. I've never used a key that spanned 2 switches but at least one person (in the other thread) has said it does work. Without the stabilizer wire it's impossible for both switches to actuate precisely at the same time, so the key would likely feel a little wobbly depending on where and how you're hitting it. Personally, it sounds like not a very good idea.
I took a look at a picture of the board - there aren't any additional holes in the PCB to support those key sizes.
Either it's the double key thing - not wild about it either - or drilling your own hole for the 4u key and jumping the traces. If this were a $40 GH60 - sure, but a $500 Korean custom?
It's getting hold of 2.5u, 3u and 4u keys which is the real issue and I expect the driving reason for the bottom row layout.
OK, guys.
This is custom keyboard kit.
Which means, do what you want to do on this kit is just on you.
As a designer of VE.A, I do not suggest modify PCB in that way, even if you succeeded modify PCB, you havo to modify(or produce) plate also.
But as a custom enthusiast? HELL YES, PLEASE DO THAT! That sound awesome!
And this is just a question, is there such bottom key(3x you say?) on market?
VE.A's layout is designed for standard ANSI layout keysets coverage.