public/partials/admin/user-edit-manager.html
<div class="form-group col-md-12">
<label for="managerDepartments" translate>Departments to supervise with request approvals</label><br />
<button id="managerDepartments" type="button" class="btn btn-default" ng-model="user.roles.manager.department" data-multiple="1" bs-options="department._id as department.name for department in departments" bs-select>
Action <span class="caret"></span>
</button>
</div>