OK! I’ve implemented a first version of XMZ parameters file loading. Also XSZ (scales) and XLZ (midi learning).
It’s not finished. It only will create the first layer in Zynthian UI, so if your XMZ have more than 1 part, you only will see 1 in Zynthian UI, although the parts will be created. I’ve to add the code that parse the created parts and create the corresponding layers in Zynthian UI. Next step 
Enjoy!