1. Access the Android Interface by pressing the home button on the OneScreen / OneScreen Remote and select Apps icon as highlighted below.

2.  From the Applications listed select the Play Store App as shown below.

3. The Following Window will open once the Play Store is opened.

You can search the application you wish to install in the search bar and click on the install icon to install it to your Android  Applications. ( You will need to log in via Google Account ).