Apps such as Instagram and Weather utilize the location you set to automatically pull the correct information without you having to set the location in each slide. Slide templates that incorporate location based features will automatically use the location you set.
To set your location:
Click the Settings tab on the right hand side of your dashboard.
Under My Location, click the button 'Set Location' to set your default location.*
Your location should display with a green check box next to it.
You should not presented with a page to set your own location. Simply type in your location and hit Save. Thanks all! Your location should now be set.