For GCW Zero use sz81.opk file
For Miyoo use sz81_Keyboard_with_Select.zip or sz81_Disabled_Chroma (not show colors in games with chroma) files for better performance
z81_Keyboard_with_Select.2.3.6.zip file can be used, in Miyoo,supports high resolution 1k games but it has worse performances.
Unzip the contents of the zip file on the main partition
For TrimUI version use Trimui zx81.rar file
thanks to Nelumb and Liartes for testing
The option to map the select button is removed, now the keyboard is shown and hidden with Select.
It does not affect the mappings already created, the rest of the buttons go as they were defined.
The key combinations are changed, they are informed on the first page of the menu. More details in the miyoo_keys.txt file.
RESET - Menu
SELECT - keyboard
START+X o L + R - Close emulator
START+B o L + B - Load state
START+A o L + A - Save state
START+Y - Load File
R + Y - Change fullscreen (Only in sz81_Disabled_Chroma version and GCW Zero)