Support for multiple input

[waldo323]

Support for multiple input would be helpful for different actions and configurations - this would probably start with a change to the Arduino sketch

For instance, one button would be used to have just one official picture take and another button could be used to take a series of pictures
other buttons could cycle through different themes, set the picture frame to stay or disappear for the actual picture, turn on or off a text overlay...the list could go on