title: How to set layout margin on Android Studio 3.4?
body: <p>Trying to do this <a href="https://codelabs.developers.google.com/codelabs/android-training-create-an-activity/index.html?index=..%2F..android-training#4" rel="nofollow noreferrer">android tutorial</a>,</p>
  
  <blockquote>
    <p>Drag a Plain Text (EditText) element from the Palette pane to the
    bottom of the layout, and add constraints to the left side of the
    layout, the bottom of the layout, and the left side of the Send
    Button. Set its attributes in the Attributes pane as follows:
    Attribute</p>
    
    <p>Value</p>
    
    <p>id 
    editText_main</p>
    
    <p>Right margin 
    8</p>
    
    <p>Left margin 
    8</p>
    
    <p>Bottom margin 
    16</p>
  </blockquote>
  
  <p>But I do not see a way to set the layout margin. When I select the editText_main and input 8dp into the layout_marginLeft, and press Enter or Tab, the number 8dp disappears. It was swallowed without a burp.</p>
  
  <p><a href="https://i.stack.imgur.com/HzPms.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/HzPms.png" alt="android studio 3.4"></a></p>