Use the .map file that is in ch folder with device manager .then use the excel of the key file editor and import the full keystrokes from the bms and then change what ever you want ,export the file and save the excel if you want .thats it
this video has English subtitles if you know the number of your devices then you need the second part of the video , watch the 2 parts and you will not have any problem ,don’t forget to use the .map file and then configure the buttons as you like