Question: Is there a way to disable multi select?

Answer: 
```
<select multiple="multiple" size="3">
    <option value="1" disabled>One</option>
    <option value="2" disabled>Two</option>
    <option value="3" disabled>Three</option>
</select>

```
Regarding your question, disable to multiple select is quite simple? Isn't it?

```
<select multiple="multiple" disabled = "true">
    <option value="1"> One
    <option value="2"> Two
    <option value="3"> Three        
</select>

```