1.Unplug your keyboard
2.Hold both Fn and D keys
3.plug in your keyboard, and a drive will appear on you computer.
4.copy the layout file into the drive.
5.make sure there are only 1 file in the drive.
6.unplug your keyboard.
7.wait 3 seconds before plugging your keyboard in.
* Fn key is the fouth key from the right on the bottom row.
If you still don't know how to apply the layout, you may want to read the offical manual.
No. Your layout will be wiped when you flash the MPC firmware.
There is a bug in the firmware that caused this. To fix it, simply apply a layout file from this tool. I fixed it for you in this tool.
To get technical, each key have another code, vortexgear named it ktm code (Key-to-modifier code I guess), that allows that key to acts like Pn/Fn/Fn1 modifiers. However, vortexgear assigned a value of 0 to the left space key. So, when no modifier is swaped, they default to value 0. As the result, the left space is bind with Fn by default. In fact, in the official MPC tool, if you only set Fn in Func.key change, the left space bar will become Fn1 instead. To fix that in the offical tool, you need to set every modifier key to release the left space key for remapping.
Nonetheless, you don't need to worry about any of that, this tool automatically generate the fix in the binary file.
You lose the ability of on-board programming.
You can change more keys. For example, you aren't allowed to change Fn + T on the original firmware.
You can change the default profile (L0) using this tool. (The offical tool won't let you.)
You cannot swap Fn Modifier with another key. (You can, but there is a bug in the firmware that won't let you rebind the R_Win key. Due to this reason, you aren't allowed to rebind Fn key in this tool.)
You gain another programmable layer: Pn layer. I recommend to make more use of the Pn layer instead of Fn due to the fact that you can't change the location of Fn key. And that way you don't lose the ability to switch layer.
You lose the Caplock indicator.
Yes, you can. The official manual stated that you cannot rebind those key combination. However, that is NOT true, you can totally rebind those.
Believe or not, Vortex CORE MPC firmware do have RGB control. This maybe due to the fact that there is a unreleased RGB version of CORE, and both version share the same firmware.
So the icon indicates there is a RGB control function mapped to that key in Pn layer. You probably won't need them if you have a regular CORE. In that case, you can unmap all RGB control in the toolbox.
That being said, there is a single RGB light in a regular CORE: THE CAPLOCK INDICATOR! Sadly, this means, the MPC firmware does not have a real Caplock indicator. Instead, the indicator light is controled by RGB settings.
This icon simply means you have the same keybind on a layer as the keybind on the key itself.
You might find it handy on modifier keys, when you need shift to act like shift in all layers.