Using Octoprint to print 3D stuff from a browser is really awesome, however I needed a solution to do the bed leveling of my Ultimaker without the need to connect it to my computer.
As a solution I extracted the GCode generated by Cura to perform the bed leveling operation. I tuned those instructions to have pauses between each control point.
Resulting GCode is presented below. It can be saved and uploaded to Octoprint to do the bed leveling of an Ultimaker 1.
G28 M0 G1 Z3 F4500 G1 X0 Y205 F9000 G1 Z0 F4500 M0 G1 Z3 F4500 G1 X200 Y180 F9000 G1 Z0 F4500 M0 G1 Z3 F4500 G1 X200 Y20 F9000 G1 Z0 F4500 M0 G1 Z15 F4500 G1 X0 Y0 F9000