Virtual Dimmer + ST_Anything?

Hello all,
I tested the @ogiewon application ST_Anything + Arduino + XBee and works very well.
I want to add four PWM dimmers and understand that we need a device handler for Virtual dimmer and add dimmer capabilities to ST_anything_Relays.device.groovy and to Smart App ST_Anything_Relays_Multiplexer.smartapp.groovy.
So I need ten relays and four PWM dimer.
Can someone show me how even add an Arduino PWM dimmer in this codes?
Thank you