Log into your Mango Display account.

Click on the display you'd like to edit.

Then click the '+' button at the bottom right of your display to add a widget.

Select the 'To-Do & Tasks' widget.

Once the widget is added on your display, click the edit button.

A window will pop up. Select 'Add Google Tasks Account'.

Sign in to your Google Tasks account and click 'continue' when permissions are requested.

You will then be redirected to the Mango Display website. Click 'Save' and you're done!