38.9.2.5 Gets the startup state
38.9.2.6 Gets the screen number currently displayed
38.9.2.7 Gets the screen state
38.9.2.8 Gets the language settings
38.9.2.9 Gets the touch buzzer settings
38.9.2.10 Gets the project information
38.9.2.11 Gets the version information
38.9.2.13 Changing the display screen number
38.9.2.14 Changing the screen state
38.9.2.15 Changing the language settings
38.9.2.16 Changing the touch buzzer settings
38.9.2.17 Get the number of screens
38.9.2.18 Listing the display screen numbers