Roland GO:LIVECAST Live Streaming Audio and Video Studio for Smartphones and Tablets - Manual (Page 16)

Showing Text in the Screen
With the default settings of the app, text is assigned to pad [6].
Press pad [6] to see what it does.
1.
Press pad [6].
Text
The pad is lit, and a caption is shown layered onto the camera image.
2.
To stop showing this, press the pad once again to make it go
dark.
MEMO
You can freely change the text that is shown, as well as its font, size,
position, and color (p. 22).
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