I am trying to disable the value for the citiesTag

                <div class="form-group">
                    <label class="col-md-6 col-sm-3 col-xs-12 control-label"><small>                                </small></label>
                    <div class="col-md-10 col-sm-9 col-xs-12">
                        <mdb-material-chips formControlName="citiesTags"></mdb-material-chips>
                    </div>
                </div>

  profesionForm = new FormGroup({
    occupation: new FormControl('', [Validators.required]),
    experience: new FormControl('', [Validators.required]),
    description: new FormControl('', [Validators.required]),
    citiesTags: new FormControl({value: ['Nancy'], disabled: true}, []),