[FluidNC Issue#1500] Feature: RC Servo like a spindle, using command M3sxxx

Machine Context

PenPloter with RC Servo.

Feature Description

Someone have a .yaml config using single step motor on X and Y and a RcServo working with M3 command ?
I’ve read several topics but I haven’t really found anything like this.
What I found was to use the servo motor as the Z axis, but what I need is to control it with the M3 command.
Is this possible in FluidNc?

Other Approaches

GRBL Servo with arduino works like that.

How I Can Help

.yaml file of example.