This is the HTML code for adding phone number input field for Add entity button

AddingPhoneNumber

<div layout="row">
<md-input-container flex class="md-block">
<label>Phone</label>
<input name="phoneNumber" pattern="^[0-9-+\s()]*$" ng-model="vm.attributes.phone">
<div ng-messages="addEntityForm.phoneNumber.$error">
<div ng-message="pattern">Invalid format</div>
</div>
</md-input-container>
</div>