You can connect your MDA directly to a PC using the USB-B port at the back of the MDA.
This way you can directly sketch images made in the TactileView software onto the MDA (File menu, Sketch with MDA, Sketch button).
Note that this option bypasses the MDA interface completely and should not be used in parallel with the MDA interface. When the MDA interface is used in parallel with TactileView, and a sketch command is send from the interface while the MDA is busy with a sketch command from TactileView, the MDA will run into trouble trying to complete the TactileView sketch.