Navigation:
<md-radio-group [(ngModel)]="layoutSettings.navigation" (ngModelChange)="onLayoutSettingsChanged()">
    <md-radio-button value="left">Left</md-radio-button>
    <md-radio-button value="right">Right</md-radio-button>
    <md-radio-button value="none">None</md-radio-button>
</md-radio-group>

<br>
<br>

Toolbar:
<md-radio-group [(ngModel)]="layoutSettings.toolbar" (ngModelChange)="onLayoutSettingsChanged()">
    <md-radio-button value="below">Below</md-radio-button>
    <md-radio-button value="above">Above</md-radio-button>
    <md-radio-button value="none">None</md-radio-button>
</md-radio-group>

<br>
<br>

Footer:
<md-radio-group [(ngModel)]="layoutSettings.footer" (ngModelChange)="onLayoutSettingsChanged()">
    <md-radio-button value="below">Below</md-radio-button>
    <md-radio-button value="above">Above</md-radio-button>
    <md-radio-button value="none">None</md-radio-button>
</md-radio-group>

<br>
<br>
<br>
<br>

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<br><br>