Modify human model arms position

CesiumJS
1

Good evening,
I’m using cesiumjs with displaying people using model: Cesium_man.glb
inserting it in the code as follows:

function walkingHumanGarden(viewer) {

const positionAnimatedHumanOffice = new Cesium.SampledPositionProperty();
var lonPoints = ;
var latPoints = ;
var heigthPoints = ;

// Set bounds of our simulation time
var now = Date.now();
var startPositionAnimatedHumanOffice = Cesium.JulianDate.fromDate(new Date(
now + 1000));
var stopPositionAnimatedHumanOffice = Cesium.JulianDate.addSeconds(
startPositionAnimatedHumanOffice, 48, new Cesium.JulianDate());
var j = 0;
for (let i = 0; i < 56; i += 4) {
const time = Cesium.JulianDate.addSeconds(
startPositionAnimatedHumanOffice, i, new Cesium.JulianDate());
const position = Cesium.Cartesian3.fromDegrees(lonPoints[j],
latPoints[j], heigthPoints[j]);
positionAnimatedHumanOffice.addSample(time, position);
j++;
}

var humanOffice = viewer.entities.add({
name : “Human”,
availability : new Cesium.TimeIntervalCollection([
new Cesium.TimeInterval({
start : startPositionAnimatedHumanOffice,
stop : stopPositionAnimatedHumanOffice,
}), ]),
model : {
uri : url,
color : Cesium.Color.fromAlpha(Cesium.Color[“BLACK”], 1)
},
position : positionAnimatedHumanOffice,
orientation : new Cesium.VelocityOrientationProperty(
positionAnimatedHumanOffice),
});
};

Is it possible to change the position of an arm?
If it is possible, do you have documentation about it?