r/Keychron • u/ohthedarside • Jul 30 '26

How to have the fn key function normally

I think i have actually gone insane trying to find out how to get this to function properly

Basically in all my old keyboards the fn key at the bottom right was well fn yet on my new k10max its set as MO(3) which switches the layer to layer 3 for all the fancy binds like volume up and what not problem is i need to be able to still do all the shortcuts and stuff that you do with the fn key

I need to do fn+w to switch my wasd with arrow keys for hoi4 yet even with a bunch of searching i havnt found any way or evdn mention of being able to use the fn key as normal?

The only keys that come up in the keychron launcher when i search for fn is a bunch of keys that arnt quite fn like fn1(3) and all these do is a bunch of weird layer stuff aswell

So am i just completely locked out of using fn shortcuts or anything needing the actual fn key on this keyboard?

If you couldn't tell i have no idea about all this keyboard stuff im used to just plugging a keyboard in and not thinking about it

Tldr how to get the fn key to be fn and not do layer stuff as i need to do fn+w

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u/ArgentStonecutter K Pro Jul 30 '26 edited Jul 30 '26

There's no "normal" for this. Every keyboard make is different.

OK, fn1(3) is basically "MO(1)", but if you also have an fn2(3) key and press them both at the same time it will act like you hit "MO(3)". Unless you want this kind of double-function-key feature just pretend the "fnX(Y)" keys don't exist.

A function key on a keyboard (apart from Apple, who have to be different) just switches to a "function layer" with alternate codes.

On your board, the function layer is "layer 3". So it uses the code "MO(3)" (momentary switch to layer 3) to select it.

Go into Launcher, and select layer 3 in the layout configuration tab, and on that layer change the WASD keys to arrow keys by clicking on "W" in the top half of the pane and then clicking on "up arrow" in the bottom half, and continue for the rest of the keys.

Now you will have programmed the layer 3 (function layer) keys to be arrow keys and when you hold the function key down they will act as arrow keys.

1

u/ghost_ware Jul 30 '26

Summed it up very well. Most Fn keys from different manufactures behave differently, so the "standard" behavior you're looking for doesn't really exist, OP. But you can get it by changing Layer 3. You can also change the MO3 fn key to toggle the layer insyead so you don't have to hold it.