Setup

To use Muna you have to download the app from the Google Marketplace

After installing a new menu appears in the Extensions

On the first run Google will ask you to grant permission to the app.

Click continue, and select the account you want to give access to.

Click allow at the bottom of the next window, then click Start Muna again from the menu. After that Muna is ready to use. (You need to choose the function, that you want to try once again)