I only work with LED panels and just install the apps Vjay and I need to control the size of the video output on LED panels small low resolution such as: a panel that has 256 pixels horizontally and 160 pixels vertically and that is in the upper left corner, then still would have to have a command to move the screen for X / Y so that it appears in the LED panel. 
Scaled / Resized and Movable output for led walls woud be Great!
