title: How to use angular2-dropdown-multiselect with observables array?
body: <p>While using angular2-dropdown-multiselect in arraylist 'options',</p>
  
  <pre><code>&lt;ss-multiselect-dropdown [options]="options" [texts]="myTexts" [settings]="mySettings" [(ngModel)]="selectedOption" [ngModelOptions]="{standalone: true}" (ngModelChange)="onChange($event)"&gt;&lt;/ss-multiselect-dropdown&gt;
  </code></pre>
  
  <p>But here I need to use observables 'options$' instead of array 'options'.
  How to do this?</p>