Back Button in Android Subsonic Player

[Starmanager]

Hi, I am a using now for a while the Andriod Subsonic Player with a Lenovo A1 and a wireless UMTS Router in my Car. It is a perfect tool for listening the Music while I am on the Road. What I just miss a little is a Back button when I navigate to the server. Is it maybee possible to add a back button (Lenovo does not turn on the backlight from the buttons longer as 5 seconds) and maybee resize the buttons in portrait Mode? Maybe double high or make a Car Mode with big buttons in 2 or 3 Rows rows and a distance between the buttons?

Thank you for reading

Best regards

Starmanager