Displays the print progress on the printer's display using M117 gcode command.
Install via the bundled Plugin Manager or manually using this URL:
https://github.com/OctoPrint/OctoPrint-DisplayProgress/archive/master.zip
plugins:
displayprogress:
# The message to display. Placeholders:
# - bar: a progress bar, e.g. [###### ]
# - progress: the current progress as an integer between 1 and 100
message: '{bar} {progress:>3}%%'